Chevy 350 vacuum lines

Jan 23, 2017 · 1978 C10 350 in California. I recently replaced the water pump, and intake manifold in my C10. The EFE-TVS was helplessly rusted into the thermostat housing and had to be replaced. Ive got most everything buttoned up now and I'm working on all the vacuum lines. The truck did pass smog before i bought it, but I have little faith it was hooked up ...

I put a 350/350 combo in my 56 chevy. I now need to hook up the line for the tranny vacuum modulator. So I thought I would run a hard line with two rubber lines on the end, the only problem is the nipple coming off the vacuum modulator looks like 3/8 and the line on the carb is much much smaller.The vacuum connection is usually from the back of the vacuum modulator to a port on the back of the intake manifold. The vacuum modulator needs engine manifold vacuum to perform correctly. Ask Your Own Chevy Question. GM Tech (Cam) 32,822 Satisfied Customers. GM Grand Master Technician 2007. 14 years experience.Oct 31, 2022 ... In this video, we finally solve the mystery and I show you where this vacuum line goes on your 91-04 Chevy Blazer, S10, GMC Jimmy, ...This preformed engine line will replace the vacuum advance line running from the vacuum source to the vacuum advance canister. Our replacement lines are engineered from factory original lines, CNC manufactured for precision, and include the correct fittings and flares (where equipped). Details. SKU: CTT72B6;Ok, if you click the link below, you can get the vacuum diagram for the engine. CLICK HERE FOR DIAGRAM. Anthony. Category: Chevy. Satisfied Customers: Experience: Verified. Anthony and 87 other Chevy Specialists are ready to help you. Ask your own question now.Nova Transmission Lines. 1962-1974 Nova Transmission Lines Parts. Close. have any question? ... 1969-1970 Nova Transmission Vacuum Line, TH350, Right Side Modulator, Original Material ... (Each) Add To Cart. 9% Off. 1962-1979 Chevy Nova Transmission Cooler Hose Kit. Part #: GCS-S5047 | Manufacturer Part #: GCS-S5047 $136.39 $123.99 (Kit) Add To ...I have a record of a 97 vortec 5.7 with an average map of 35 kpa at a warm idle and 49 kpa at a warm cruise @ 60 mph. If you feel like doing the conversion. What does the vacuum do when you snap the throttle? Speaking of prius, I just replaced my 1st hybrid battery in a 2005 prius today.

Specs- 350 engine, Edelbrock Performer EPS manifold, Holley 4160, TH350 trans (rebuilt w/shift kit), 3.73 posi. I stopped at the transmission place that rebuilt my transmission about a year ago. They looked at it and said the vacuum line should be connected to a vacuum port directly on the manifold, ie. the same one that the brake power booster ...Buy 1968-1982 Corvette Emission & Engine Vacuum Hose Kits online at Zip. Specializing in C3 Chevrolet Corvette Parts since 1977. Same day shipping. No-Hassle Returns. ... 73 350 Auto Engine Vacuum Hose Kit Price: $23.99. Rating: 100%. 1 Review. SKU: ZVA-314. Add to Cart. 73 ...The great American sports car is going electric. GM shared the news this morning, and released the first images of the upcoming electric Chevrolet Corvette. The great American spor...Most engines have a vacuum port/tree screwed into that port and it will have 2-3 connections. In some cases the vacuum advance, HVAC, TH350 modulator, and …number9. 566 posts · Joined 2009. #12 · Sep 26, 2014. robpp said: fwiw here are some pics of my bone stock 69 350 350. my vacuum advance is fed from the front of the carb via a steel and rubber line. the T: right goes to the Brake booster. left (steel line) goes to kickdown. rear facing is not connected just blocked.Quadrajet carburetors have several vacuum ports that play different roles in the overall functioning of the engine. Each vacuum port has its specific purpose and contributes to the performance and efficiency of the carburetor. 1. EGR (Exhaust Gas Recirculation) Port: This vacuum port is responsible for controlling the flow of exhaust gas back ...SOURCE: vaccum hose diagram for 88 chevy truck. it may not be a vacumn leak from a line,check the throttle shaft for movement,for example,i had a 89 1 ton 350 and my throttle shaft was moving around a lot and in order to keep it from idling high,i had to kick the throttle pedal.But also check the idle air control valve,which is the round sensor ...

The Chevy 5.7 Vortec Vacuum Diagram is a visual representation of the vacuum system in a Chevy 5.7 Vortec engine. It shows the various components and their connections, including the intake manifold, throttle body, vacuum hoses, and valves. The diagram is important because it helps mechanics and car owners understand how the vacuum system works ...Re: 1977 350V8 vacuum line diagram 01-14-05 10:44 AM - Post# 482596 In response to good.wrench Oh, gosh, everyone is looking for vacuum diagrams, including me! I just logged on after being away for months because I thought someone out there might have the vacuum diagrams for a 1977 Chevy Caprice Classic landau coupe, 4-barrel, …Cant figure wiring out. go to internet & type in the following; 1984 chevy 350 free wiring Diagram and then repeat for 1991 chevy c2500 free wiring diagram. these diagrams are free and used by all mechanics. Dec 11, 2008 • 1991 Chevrolet C2500.Posted on Jun 22, 2008. SOURCE: 350 chevy small block. Aftermarket intake, camshaft and either a good set of heads or port/polish what you have. If you go with a cam, go with more adv. duration and duration and .050. I like running a .525 lift, .230 dur. @ .050 and .292 advertised duration. Get a good set of springs and valves.The first step in interpreting the vacuum line diagram is to identify the major vacuum ports on the carburetor. These ports are typically labeled and can be found on the front, sides, and rear of the carburetor. Common ports include the PCV port, distributor port, brake booster port, and EGR port. 2.

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The 1985 K10 has a LE9 305 engine, with federal emissions (UHK vacuum diagram) and a couple year old Quadrajet (M4ME) and a TH700 transmission. A long story, but the guy who last worked on it a couple years ago left a bunch of vacuum lines poorly plugged, or not hooked up and it was barely drivable. I have hooked up some of the obvious vacuum ...jimmy. Engine Size. 5.7l. Looking at the carb on my 350 5.7l I have almost all the vacuum ports plugged off. The only ones connected are PCV valve to large port on front of carb. And turbo 400 to intake manifold. Hei distributor to small port on front carb. There is a vacuum actuator pot on the side of the carb that is capped off that seems ...68-82 Black 350 Vacuum Line Dress Up ; Base Unit of Measure, KIT ; Net Weight, 0.9 ; Car Years 1, 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 ...2024 Upgraded Intake Manifold Vacuum T Fitting 3/8" NPT Thread 1/4" & 3/8" Nipple Steel ZINC for SBC BBC Chevy GMC Olds Cadillac Pontiac Buick Ford. $16.99 $ 16. 99. FREE delivery Apr 16 - 19 . ... 80PCS Vacuum Hose Caps, Connector Assortment 6 Sizes Black Rubber Cap, Automotive Topomatic Replacement Parts for Carburetor Vacuum Plugs, Intake ...1984 Ford F 350 with a 351m vacuum Diagram. Hello, here is a vacuum diagram for a vintage big block mustang with no emissions, it will work on a 2 barrel or a 4 barrel carburetor, if you run your lines like this and get rid of the other BS it will run sooo much better, also you can delete the blue stripe wire if you have an aftermarket air ...Buy 1968-1982 Corvette Emission & Engine Vacuum Hose Kits online at Zip. Specializing in C3 Chevrolet Corvette Parts since 1977. Same day shipping. No-Hassle Returns. ... 73 350 Auto Engine Vacuum Hose Kit Price: $23.99. Rating: 100%. 1 Review. SKU: ZVA-314. Add to Cart. 73 ...

Carburetor Vacuum Lines The 1967 - 1972 Chevrolet & GMC Pickups Message Board Register ... Carburetor Vacuum Lines Web 67-72chevytrucks.com: User Name: Remember Me? Password: Home: ... Join Date: Apr 2013. Location: Princeton, NJ. Posts: 40 Carburetor Vacuum Lines. Hi guys, I have a 1971 C20 with a 350 and Quadrajet carb. Take a look at ...Here is a diagram, there is also usually one underneath the hood on a white label. Let me know if you have questions, thanks. Dan. Category: Chevy. Satisfied Customers: 27,581. Experience: Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database.C3 Tech/Performance - Need a picture of 1971 engine with proper vacuum routing - I'm having a hard time figuring out the standard 350 vacuum line routing for the vacuum tank, distributor, CEC solenoid, PCV, and automatic transmission modulator. Does anyone have a picture Alan71's engine? I have seen it a couple of...JEGS Transmission Vacuum Modulator | For GM/Chevy 1963-1990 TH-350 and TH-400 Transmissions | Adjustable ... No featured offers available $19.99 (1 new offer) The Right Stuff CTV6903 Transmission Vacuum Line (Turbo 350, Right Hand Modulator) 5.0 out of 5 stars. 4. $49.97 $ 49. 97. FREE delivery Feb 28 - Mar 1 . Or fastest delivery Feb 27 - 28 ...Share. Access our free Vacuum Diagrams Repair Guide for GM Full Size Vans 1987-1997 through AutoZone Rewards. These diagrams include: Fig. 1: Vacuum hose routing – 1987-88 Federal and high altitude (VIN Z) 4.3L engines with automatic transmissions (G10, 20 and 30 models) Fig. 2: Vacuum hose routing – 1987-88 Federal and high altitude (VIN Z ...Re: 87 chevy 350 r10 tbi vacuum diagram? « Reply #1 on: January 23, 2011, 09:19:00 PM ». I just took some pictures with my cell phone of an 87 R10 vacuum diagram; I've got my teenager showing me how to get them off the phone and will post them as soon as I can. Logged.1994 c3500 tbi vacuum lines identificationJul 15, 2003 · The ports on the TBI unit are labeled with leters which I will reference here. back of TBI unit: port F goes to the MAP. front of TBI unit: port J goes to EGR. port C goes to PCV. port A goes to charcoal. port B goes to aircleaner. -1971 FJ55 (aka Trail55): 6.0L-NV4500-LC split case, SOA, D60s, ARB'd... and cupholders :flipoff2: These may create a vacuum leak as well. Pinch the vacuum line leading to the device, and spray soapy water on it and hear for a change in idle speed. If you find a hose with a softened, hardened, or damaged spot, replace it. You can also spray water on a hose, ports and connectors to help you check for leaks.The vacuum diagram for a 1979 Chevy 350 engine shows the various components that rely on vacuum pressure in order to function properly. Understanding how vacuum is distributed and used in the engine can help diagnose and troubleshoot issues with performance and fuel efficiency.May 2, 2009 · Not sure if this will help but, I thought my TH350 needed a rebuild. It turns out, there was a 2 inch piece of rubber hose that connected the vacuum line to the vacuum canister on the tranny that was rotted out and it split. I replaced it and the tranny shifted like a dream after that. Perhaps, check the connections, but if everything seems ...

I need to know what hoses hook up to what ports on the carberator as well as all vacuum lines. ... 79 Chevy: ton..4x4, 350 crate engine..carb..emissions. I have a 79 Chevy 1/2 ton truck, 4x4, 350 crate engine. It has a 4-barrel Rochester carb. I'm using the vehicle as more of an off-road vehicle and does not require emissions.

there is vacuum from inside the carb that pulls the filtered air it gets from the back of the carb thru the heat crossover, which is then heated and pulled thru the choke coil into the carb. this heats up the coil and opens the choke as much as it needs. this is the best choke setup ever devised, and i would definitely try to get it working ...First , find the problem area on the Vacuum diagram. Highlight the individual area. Trace the Vacuum till you can see where a problem may have taken place. Eliminate each portion of the diagram in sections until you find the leak in the Vacuum. This makes knowing where to check connections easy with an automotive Vacuum diagram.21 chevy 350 vacuum diagramVacuum line diagram for 1971 chevy 350 Vacuum diagram 350 chevy lines 1984 sbc wiring schematic carbVacuum diagram chevy van 1986 routing diagrams need sam. Check Details Diagrams gm.Jun 11, 2002 · There are differning opinions on where to hook up the vacuum advance line. There are two possible vacuum ports on the carb. One is a ported vacuum source and the other is an unported vacuum source. Try both and use the one that makes the car run the best.-----Pearl blue & white 69 Camaro with supercharged 350, Tremec TKO, and 3.73 12-bolt Buy GM Genuine Parts 12559760 Power Brake Booster Vacuum Hose Connector: Power Brake Systems ... Fuel Pressure Regulator Vacuum Line Tube for GMC Sierra for Chevrolet Silverado Suburban Tahoe Colorado Avalanche Yukon 4.8 5.3 6.0 1999-2005 Replaces 17113556.All Time: 107,095. The year range is pretty non specific. If the truck has a vacuum hose to the transmission (to the vacuum modulator), the line will be a metal tube attached to the large tube that the transmission dipstick is in. It will come up and connect to a hose that will run to the base of the carburetor.... - 1988-1998 GMC Pickup.Share. Access our free Vacuum Diagrams Repair Guide for GM Full Size Vans 1987-1997 through AutoZone Rewards. These diagrams include: Fig. 1: Vacuum hose routing – 1987-88 Federal and high altitude (VIN Z) 4.3L engines with automatic transmissions (G10, 20 and 30 models) Fig. 2: Vacuum hose routing – 1987-88 Federal and high altitude (VIN Z ...

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Eliminating smog lines, canisters. « on: November 13, 2010, 12:39:24 PM ». 1979 C20, rebuilt 350 stock qjet 4br rochester. I have the truck registered in globe and dont have to do emissions. The truck is from california and has 2 smog canisters and the a.i.r. pump. I removed the exhaust manifold and put headers on so i looped the smog pump ...The underhood end should mount to a factory installed nipple on the rear of the intake manifold with another piece of rubber vacuum hose. If there is no nipple then plug it into the rear of the carb. If the steel line is missing, then get a piece of brake line and use it. The distance is too far for a piece of rubber hose. Dorman Products PCV Valve Cover 1996-2007 Chevy/GMC. Dorman Products 47026 Part Number: 326-47026. ... Dorman Products Vacuum Hose 3/16" Diameter. $5.89 (1) Ships Monday (5) Hard line going to the brake booster (1) another image of the MAP connection to the rear of the throttle body base (6) Connection 6 is on the rear of the intake manifold. I think this is a vacuum line and I have it running up to a tee, connected to the vacuum cannister, cruise control (non-op right now) and the HVAC vacuum line.the carb line goes to a nipple that is between the throttle plates and the choke plate (so it sees high vacuum for cold starts and closes the snout valve) these vac fittings are small, so even open, they do not change the way a car runs that much. Kevin. 69' SS-350 Convert, M20, 3.31 posi.This is a stock 350 Chevy. Also is it possible for the master cylinder to leak fluid into the vacuum booster and then be sucked into the intake through the vacuum line? Thanks. ... spank: open the valve so a little propane can come out, and hold it close to intake gaskets, vacuum lines and things. Carb cleaner with the straw on the tip works ...SBC 350 Vacuum Advance/ Idle issues. I'm seeming to have quite a bit of trouble adjusting my timing/ idle speed. I pull and plug the vac advance line, set the timing to 12 BTDC. Adjust the idle speed and Air/fuel slightly to were i'm idling around 850 in park/neutral and idling at 650 in gear. When i hook the vac advance back up, idle speed …This is a stock 350 Chevy. Also is it possible for the master cylinder to leak fluid into the vacuum booster and then be sucked into the intake through the vacuum line? Thanks. Save Share. Like. Sort by Oldest first Oldest first … ….

Re: 79 c10 350 with edelbrock carb and intake. vacuum lines?????? It does run better now that the tranny line is hooked to manifold vacuum. Before that switch it was stumbling and shifting at a higher than ideal rpm. The only connected lines are the distributor, tranny, PVC to carb only, and brake booster.Posted on Jun 22, 2008. SOURCE: 350 chevy small block. Aftermarket intake, camshaft and either a good set of heads or port/polish what you have. If you go with a cam, go with more adv. duration and duration and .050. I like running a .525 lift, .230 dur. @ .050 and .292 advertised duration. Get a good set of springs and valves.May 25, 2018 ... Part 2: how to trace out your vacuum lines ... EMISSIONS , VACUM AND CANISTER DELETE 1985 C10 305/350 ... Chevy/GMC TBI flooding smoking running ...I just added a brake booster to my 55 it has a 350 motor, were do I put the vacuum line to. ... 1956, and 1957 Chevy owners and enthusiasts. Come join the discussion about restoration, engine swaps, reviews, performance, modifications, classifieds, troubleshooting, maintenance, and more! Open to all models including Belair, …Share. Access our free Vacuum Diagrams Repair Guide for Chevrolet Full-size Cars 1968-1978 through AutoZone Rewards. These diagrams include: Fig. 1 Vacuum hose diagram-1971 V8. Fig. 2 Vapor control hoses for 1971 L6 engines. Fig. 3 Vapor control hoses for 1971 V8 engines. Fig. 4 Vapor control hoses for 1972 V8 engines-C60 is for A/C equipped ...from Sierra Vista AZ. use 1/4" steel tube, with 7/32 rubber at the ends.... squirrel, Nov 17, 2006. SHARE POST #3.Vacuum line diagram for 1971 chevy 350. Vacuum diagram hose lines 1981 chevy schematic 1980 replace need repair diagrams fixya pickup fig sorry limited try space postsCamaro control nastyz28 problem Carburetor control.. Vacuum Line Diagram For 1971 Chevy 350 | Free Download Wiring Diagram. Check Details. I need a vacuum diagram for a 1978 350 ...350 tbi engine vacuum diagram Chevy 350 tbi vacuum line diagram 1987 chevy 350 engine diagram. What is the 98 k1500 350 ci vacuum line routing. Chevy 350 tbi engine diagram'87 350 w/tbi vacuum line questions Blazer oldsmobile 1989 … Chevy 350 vacuum lines, The vacuum line diagram for a Chevy 350 engine shows the routing of the vacuum lines and the connections between the different components. It provides a visual guide for car owners and mechanics to follow when inspecting or repairing the vacuum system., The great American sports car is going electric. GM shared the news this morning, and released the first images of the upcoming electric Chevrolet Corvette. The great American spor..., Where you can attach brake booster vacuum line on intake manifold or carburetor. Any older classic hotrod car truck. Join this channel to get access to perks..., #1 · Jan 27, 2006. Hi guys- Where should the vacuum hose for the transmission actuator connect at the manifold? Mine is currently connected to the carburetor base plate. The problem is that I just got it out of the shop after some carb work. The engine runs great, but the trans is not shifting right., WHAT IS A VACUUM LEAK AND HOW TO FIX VACUUM LEAK ON CHEVY, CHEVROLET, BUICK, GMC, CADILLAC Great Car Scanner: https://amzn.to/2QmNBri Check out our Amazon ..., The vacuum line diagram for a Chevy 350 engine shows the routing of the vacuum lines and the connections between the different components. It provides a visual guide for car owners and mechanics to follow when inspecting or repairing the vacuum system., The power brake booster vacuum hose plugs into the center of the rear of the carb at the baseplate. ... 1974 chevy pick up 3/4ton , 350 ,4 barrel.. did tune up .. cap ,rotor, plugs, oilfilter, air filter, fuel filter.. After all that card started foolding for no reason.. replaced carb ..., OO52. 1105 posts · Joined 2012. #3 · May 19, 2020. Assembly manual is a required item along with the Service manuals if you want to do any work on your car. Especially if you're keeping it near stock. If you have a California car, there are additional vacuum lines for the evaporative system (NA9), first thing to do is to see if the vacuum pump at the back of the motor has any vacuum,, ( the thing at the back of the motor where the distributor usually goes).. if it does chase the hoses and make sure there is vacuum to anyplace that that Main vacuum hoses connect to,, look for broken lines,cracked T's and so forth,, there is a vacuum line ..., I need to find a vacuum hose diagram for a 1984 chevy caprice classic. the vacuum hose should be linked from intake manifold to thebrake booster on brakes as well as to the side of the gearbox onthe vacuum canister. should any one leak there will be a misfire or no vavuum for brakes. Feb 22, 2009 • 1984 Chevrolet Chevy., techinspector1. Two of the components are screaming for a loose torque converter, shift kit and double pumper. 3K stall speed should be about right. Get valve covers with PCV capability and plumb per this diagram.... The hose from the tee to the second breather is a vacuum leak that renders the booster a non-player., Stock vacuum line configuration on carburetor should be: - Threaded fitting on the back of Quadrajet, with a hard steel pipe attached to it. The pipe curves up around the throttle bracket and toward the brake booster, and then the rubber line to the booster is attached to it. - Large 3/8" fitting with a nipple on the front of the carburetor., Find CHEVROLET 5.7L/350 Vacuum Lines and get Free Shipping on Orders Over $109 at Summit Racing! ... Power Brake Booster Vacuum Hose, Rubber/Steel, Chevrolet, GMC, Each. , If its not a restoration any Kit will do. Most of the major Vendors sell the above kit if you tell them what your doing. Some of the more detailed diagrams have the Hoses wrong for the 80-82 at the headlights. The 80-82's have the Vacume cans opposite. The left can is on the right and the right is on the left., The vacuum connection is usually from the back of the vacuum modulator to a port on the back of the intake manifold. The vacuum modulator needs engine manifold vacuum to perform correctly. Ask Your Own Chevy Question. GM Tech (Cam) 32,822 Satisfied Customers. GM Grand Master Technician 2007. 14 years experience., Vacuum Lines. CHEVROLET. Product Results. Filter by Vehicle. Search New Vehicle. Search Within Results. Filters. In Stock. Ships Today. (1) In Stock, Including at a Supplier. Ships In a Few Days. (2) Get Results. Brand. ACDelco (6) Auto Metal Direct (1) Get Results. Make/Model. Get Results. Make/Engine. Get Results. Fittings Included. No (6), GMC Cars & Trucks. firing order of 265 to 350 chevrolet smallblock v8 animated. Repair Guides Vacuum Diagrams Vacuum Diagrams AutoZone com. This has already been answered .Any google will show many pictures all from this website. 1991 Chevrolet C3500., 1974-75 Camaro 350 Hi Performance PCV Valve . ... 1978-79 Chevrolet Corvette; Vacuum Hose Clamp Sets. Vacuum Hose Clamp Sets for 1978-1979 Chevrolet Corvette. From restoration to performance, we are proud to offer the highest quality parts for both classic and late models Corvettes., Shop 350 Chevy Small Block V8, Thermostats, Housings, Outlets, Hoses and get Free Shipping on orders over $149 at Speedway Motors. ... Chevy Straight Water Neck & 180 Degree High Flow Thermostat (1) Material Type: Aluminum. Finish: Polished. Hardware Included: Yes. $47.99 /kit. $54.99. Add to Cart-9%., The vacuum line diagram for a Chevy 350 engine shows the routing of the vacuum lines and the connections between the different components. It provides a visual guide for car owners and mechanics to follow when inspecting or repairing the vacuum system., I need a vacuum line hose diagram on a Chevy 350 engine? Updated: 10/22/2022. Wiki User. ∙ 9y ago. Best Answer. It depends if your 350 is carb or fuel injection. if carb then it depends somewhat ..., 25 1984 chevy 350 vacuum diagramVacuum line diagram for chevy 305 Chevy wiring gmc blazer 1982Vacuum lines diagrams!!! i got them all!!!!!. Vacuum lines diagrams camaro engine chevrolet 1973 diagram line 350 chevy 1987 got them body caprice am control auto valves305 z28 camaro hoses emission diverter emissions 30 1986 chevy truck vacuum ..., Details. Edelbrock part #8096 Vacuum Adapter Fitting is a low profile elbow that is designed to provide clearance for Holley and other carbs with a rear fuel bowl that extends over the vacuum port tap in most intake manifolds. Machined from solid brass. More Information. More Information., I show and discuss that just changing the Modulator may not help anything. that the valve in the transmission case may be the issue. watch this video in its ..., 5444 posts · Joined 2008. #3 · May 24, 2016. I have a turbo 350 and I have my vacuum modulator hooked up to a t fitting with my brake booster and it runs fine there but I have had it hooked up in the past on the timed vacuum port which as soon as your open up the throttle it gets vacuum anyways and it worked just fine., 6453 posts · Joined 2002. #2 · Apr 1, 2010. Yes. Your vacuum modulator needs to be hooked up. Its located on the passengers rear side of the trans. Here's a pic. Centerline. HotRodsAndHemis.com. "Political Correctness is a doctrine, fostered by a delusional, illogical minority, and rabidly promoted by an unscrupulous mainstream …, The following is in reference to a 1998 Chevy Suburban C1500 5.7 2WD ... 350 AT 3" Lift 250K+ 02 Honda Civic LX Looking for a 1990's Miata for an engine swap. ... or even on the firewall. The only vacuum lines I see at all are the Brake Booster hose, and what appears to be some sort of purge device for the vapor canister. That's it. This is the ..., So you narrowed it down to two window lines, Pella® 350 Series and Pella® 250 Series. Here's our comprehensive guide that compares everything from costs. Expert Advice On Improving..., The AC was blowing out the top (defrost) and bottom but not out the vents. This is what you need to check. I replaced the entire line for $3.20 the auto st..., Top 6 Reasons Why Your Chevy 350 TBI Bogs On Acceleration. #1. Leaking Vacuum Lines. A vacuum leak results in supplying the wrong air/fuel ratio into the engine, thus, resulting in bogging or rough and slow acceleration. Some other symptoms to look out for to ensure that the problem is indeed a vacuum leak are hissing sound from the engine bay ..., I put a 350/350 combo in my 56 chevy. I now need to hook up the line for the tranny vacuum modulator. So I thought I would run a hard line with two rubber lines on the end, the only problem is the nipple coming off the vacuum modulator looks like 3/8 and the line on the carb is much much smaller., Using manifold vacuum advance will add 10-20º of extra advance at idle and the engine speeds up a lot. Nail the throttle and that extra 20º timing drops away and a bog will probably occur. That is why there is ported advance as the port is exposed when the engine approaches about 1,000 rpm while driving, giving the extra timing as needed., 1994 c3500 tbi vacuum lines identification