Holley date codes

model 885 - number on plate, mounted on air horn body. number may also be found on tag as shown here model 1909 part number stamped on throttle body flange or

Holley date codes. This link may help: http://www.holley.com/data/TechService/Technical/Carb Numerical Listing.pdf The date codes on factory Holley carbs were 3-digits up to 1973, …

Our date code converter is here to help. It supports numerous formats mentioned in our How to Read Expiration Dates article and their variations. Simply enter the code (like 052124 or 13156) into the input below and click the button to see the converted date. Convert. Having trouble with the converter or notice any inaccuracies?

C3 General - Holley carb date of manufacture - I have just purchased a used Holley carb, list# 1850-3, date code 0069. Does anybody know how to tell if this carb was manufactured on Jan. 6, 1969, 1979, 1989, 1999, or 2009?Holley Three-Digit Date Codes. 1st Digit. 2nd Digit. 3rd Digit. Stamp. Year. Stamp. Month. Stamp. Week. 5. 1965. 1. January. 1. 1st week. 6. 1966. 2. February. 2. 2nd week. 7. …And yes, the date codes on Holley carburetors are decoded as follows: first number is the year (in this case 1969), second number is the month (in this case 4 = April), and the third number is the week it was produced (in this case 2 = second week).Holley Coupons can help you save $21.58 on average. You get a discount on 20% OFF when you buy Holley's goods from holley.com. According to statistics, a person who participated in 20% Off Srp at Holley saved an average of $21.58. Coupon Codes are widely used to give you discounts on whatever you buy. 10%.CFM 715 Holley. List Code 9029. Date Code 1435. Vac Secondaries. Dual Inlet Feed. This is a used carburetor and needs to be rebuilt, its been sitting around our shop for many years. This is not a marine certified carburetor. $90.00. Out of stock.Nov 26, 2003 · The guy on the carb. forum explained the code like this- year-month-week. the year part is easy the month part is where it gets tricky. Jan.to Oct. is 1 thru 0 and Nov.-Dec. is A and B . A date code of 6B2 would be 1966-Dec.-2nd week. The complete # for this carb. is C3AF-9510-BJ List-2805 he thinks this could be from A 67 GT500 with 427 ,also ...

13 May 2013 ... Did Ford use Holley, Carter and Autolite carbs on these engines or just the Autolite 1100? ... the only #'s on the hood are the date codes.5 INTRODUCTION & SYSTEM REQUIREMENTS Holley Performance Products has written this manual for the installation of the Sniper EFI TBI fuel injection system. This basic manual contains the information necessary for the installation of the throttle body, wiring, and sensors.Below the list number is a date code that will contain no more than four (4) digits. See Figure 1 below. Figure 1. DISASSEMBLY: Rest the carburetor on a repair stand to avoid …Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel. Thus, Holley can not guarantee an answer or timing on an answer. ... Join Date: Dec 2021; Posts: 8; Share Tweet #1 Sniper backfire at intake during acceleration. 12-04-2021, 02:18 PM ...Below the Holley list number is the three-digit date code, which can be deciphered as follows: The first number designates the year of manufacture, represented as the last digit of the calendar ...https://www.holley.com/products/fuel_systems/carburetor_components/rebuild_kits/ Are you looking for a rebuild kit, parts, or specifications for your...Below the Holley list number is the three-digit date code, which can be deciphered as follows: The first number designates the year of manufacture, represented as the last digit of the calendar ...The identification number and the date of manufacture are stamped into the forward vertical surface of the air horn. The three digit date code is broken down with …

Holley is home to the top automotive performance brands including Flowmaster exhaust, MSD Ignition, Holley EFI, Hurst Shifters, Accel plug wires, Hooker Headers and many more.Doesn't seem to indicate a use for the chevelle. But that would seem logical to be used in both the chevelle and the passenger. Indicates list # 3268 used for 66 chevelle on AT with 325HP. 4th week of June doesn't seem to early for holley to put a carb together , send it out and have it on a shelf, then install it in a car.2300-EG Diagram. 2380-EG Diagram. Holley 5200 5210 5220 6500 6510 6520. Parts Page. Diagram. Holley 2280 6280. Parts Page. Diagram. Holley 4150 4160 4165 4175 4180 4190.14 Mar 2018 ... just an idea on how a 3310 or 3310-1 holley is nothing like a 3310-2 through 3310-11.Cataclean - Fuel and Exhaust System Cleaner. Motorcycle and Powersports. View All

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Apr 15, 2013 ... there will be the number 3447SA and next to that or below that stamping there will be a date code stamped on the same ear. For example a carb ...Unlock the full potential of your Terminator X and Terminator X Max ECU with our free PC software download. Take control of your Fuel Tables, Timing Tables, Idle Control, DBW Control, Boost and Nitrous Control, and much more. Through the advanced tables, you also can add custom sensors such as flex fuel or nitrous bottle pressure. Also included; real-time strip chart, and datalogging/datalog ...600: 37-119 37-933: 6-506 122-66: 134-9134-128: 125-65 0.025: Plain 108-83-2: 108-89-2 108-90-2: 108-27-2 134-101: 134-105 112-20: 1-1/4 1-5/16: 1-9/16I have one Holley 4346 #3959164 three number date code copo carb, very clean and complete, and a 4346 #3959164 four digit date code, Just the main body.I think the second carb was a service replacement carb for the copo's due to the four digit date code.Holley date code question. Is the date code 0953 correct for 1967? aka HurdRep, Denver Dave and keeper of various 55 and 57 Chevys, , 67SS396 Convertible, , 40 Ford, 51 Mercury and a real 32 Ford three window coupe, for balance. 095=day of year. 3=Final digit in year manufactured.

On the center carb the date code is located on the rear, left of the air horn close to the top. On the outboard, front and rear carbs, the carb date can be found on the rear, left of the main body close to the top. Carb Date Numbers. The Six Pack Holley date code consists of four numbers. The carb date does not go by the Chrysler 10,000 day ...Date Code: 5J29 - 12V Neg = September 29,1965 Correct for this car Carburetor Holley Carburetor: List# 3367= This is the correct list number for a 1966 327ci 350hp engine. Date Code: 1590 Correct replacement carb for a 350HP 327 built June 8th the 159 day in 1980. Part Number: 3884505 - DA Ink Stamp: 470502702 posts · Joined 2009. #2 · Feb 23, 2012. carb date 0502. according to "holley carb date code". 050 is feb. 2= 1962,, 1972. 1982, 1992. This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.Holley EFI Version 3. V3 Software Overview. DOWNLOAD AND READ THIS FIRST. Includes V3 updates and information. V3 is updates are not needed for most users. Holley V3 Firmware. Contains V3 Build 140 firmware - For use with Dominator and HP ECU's - DO NOT USE WITH TERMINATOR X. Holley V3 Software.Holley carburetor numbers are referred to as 'List' numbers. They are usually stamped on the carburetor body and preceded by the word 'LIST' or the letter 'R'. Numbers that are preceded by '6R' or other combinations of numbers and the letter 'R' are casting numbers referring to a particular part of the carburetor and cannot be used to identify ...All Holley power valves are stamped on the side or, as in this case, the metal reinforcement near the center. You can see an "8" and a "5" making this an 8.5"Hg power valve. The stamps on the top are date codes. The range for standard Holley valves is from 2.5 to 10.5 "Hg (inches of Mercury).Bob Gaines and I were discussing date codes on BJ BK carbs for 67 GT500s. Bob feels and I agree that the carb dates are usually around three months prior to the engine assembly date. So I am curious if any of you guys with 67 GT500s built at Ford in the month of January 67 can tell me what your carb dates are if you know the carbs are original ...C8OF AA List 4174 Carb. Original Ford Holley 4 Barrel carburetor. C8OF-9510-AA List 4174 834. 1968 1/2 428 Cobra Jet Mustangs, Cougars and 1968 Shelby GT-500KR 4 speed. 834 date code, breaks down as the 4th week of March, 1968. Metering blocks are stamped 5673 and 5671. Still retains the original tag mounted to the bowl vent tube, not the choke ...On a related note, my car was started the 4th week of May, 1968 (05D) and the carb is dated 833 like chedderboys. The 4053 carbs were built in batches and I've seen several 4053's with this date stamp. Now, I'm not sure when the batch before that was built, or the batch after that, but usually, the Holley carbs are a few days to several weeks ...store the data). There will be a default name, which includes the date and the time at which the log was started that can be used or changed. 3.0 Internal Data Logging The HP and Dominator ECU's both feature 2 GB of internal logging storage. Multiple files can continue to be stored until the 2 GB of memory is exceeded.

When searching for used carburetors, note that three-digit date codes are pre-1973. Service carburetors (dealer replacements) will also be stamped with a four-digit code similar to post-1973 units, the carburetor shown above was a service unit produced in 1978.

Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel. Thus, Holley can not guarantee an answer or timing on an answer. ... Join Date: Apr 2020; Posts: 10; Share Tweet #1 Pin-Out Wire Colors 05-02-2020, 04:48 PM ...Date codes are found on the carburetor air horn. Expect to see three lines stamped in factory installed and service replacement Holley carburetors-Ford part number, Holley List number, and the ...Date code on this Holley 2818. OK, I have read through so many forums filled with contradicting information regarding Holley date codes. So forgive me if I throw my arms up and ask....what is the Julian date on this Holley List 2818-1 dated 554? Thanks Reply Like 04-23-2019, 04:21 PM ...Using the MSD Pro 600 CDI with Holley EFI. How to install the easy to use Sniper EFI Hyper Spark Ignition System. Universal Wire Set Installation Instructions. Import Vehicles. MSD Troubleshooting Techniques. Magnetic Pickup in the distributor. Tachometer Operation. Engine Run On. Modifying AMC oiling for performance.date: 11-6-13 needle & seat cross reference if your old n&s is stamped with you will use size style available separately as # contained in kit # "h" .097 steel 6-500-2 "d" .097 steel 6-501-2 "f" .120 steel 6-502-2 "h" .110 viton adj. 6-504 85r8515k & 85r8515k-2I have one Holley 4346 #3959164 three number date code copo carb, very clean and complete, and a 4346 #3959164 four digit date code, Just the main body.I think the second carb was a service replacement carb for …Below the Holley list number is the three-digit date code, which can be deciphered as follows: The first number designates the year of manufacture, represented as the last digit of the calendar ...EFI - Fuel Injection. Carburetors. Carburetor Components. Fuel Pumps Regulators and Filters. Also in Air & Fuel Delivery. Air Cleaners. Air Scoops. Cold Air Intake. Fuel System Kits.Most Rochester-built Quadrajet carburetors were given a four-number date stamp. This code can be deciphered as such: the first three numbers are the day of the year (082x = 82nd day of the year) the carburetor was built. The last number is the year (0828 = 82nd day of 1968). All Quadrajet fuel inlets are in one of two positions.Holley date codes. Jump to Latest Follow 2K views 2 replies 3 participants last post by DaleM Mar 21, 2011. 1. 1966_L78 Discussion starter 14085 posts · Joined 1999 Add to quote; Only show this user #1 ...

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Save $$$ w/ Holley Coupons: 33 Holley Coupons and Promo Codes tested and updated daily. Find the latest Coupon Codes and discounts for May 2024 on HotDeals.com. Deals. Coupons. Stores. Travel. Mother's Day Sale ... Expire Date Join Holley.com Today and Receive Additional Offers: $10.09 Average Savings: 06 May: Great Offer for Holley: 10% …Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel. Thus, Holley can not guarantee an answer or timing on an answer. ... Join Date: Oct 2017; Posts: 409; Share Tweet #2. 11-17-2019, 11:10 PM.To decode the date code on a Holley carburetor, you will need to locate the date code stamped on the carburetor and then decipher it. Holley carburetors typically have a four-digit date code stamped on the choke horn or airhorn area, near the list number. …Building Holley's Latest Giveaway. Jeff Huneycutt. 04/02/2024. tech. ADS Suspension 2021-2024 Ford Bronco control arm. New ADS Suspension Components for 2021-2024 Ford Bronco. Steven Olsewski. 03/28/2024. tech.Below the list number is a date code that will contain no more than four (4) digits. See Figures below. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 . 3 ADJUSTMENT SPECIFICATIONS: MODEL 2010 List Number Choke Index Pump Cam Position Dechoke Choke Qualify 82010, 82011, 82012 No. 1 82020, 82021 Index No. 1 .300” .175”-.225 ...15 Apr 2013 ... there will be the number 3447SA and next to that or below that stamping there will be a date code stamped on the same ear. For example a carb ...I found an original Holley 4150 C7OF-9510-B list 3794 for my '67 Cougar GT 390 4V C6. The date code is 605, which translates to 1966, October, 5th week...4796 posts · Joined 2003. #3 · Dec 18, 2014. If it is a 4296 carb, it would have to have a three digit date code that starts with a 9 to even begin to be a $1000 carb. Thousands (hundreds?) of 4296 carbs were sold by Holley since 1969 as over the counter replacements so the odds of this one being an original assembly line carb are slight ...14470 is the only ZIP Code for Holley, NY. Enter an Address to find the ZIP+4. and ensure faster mail delivery, or check out the Demographic Profile. ZIP Code: Holley, NY has only 1 Standard ZIP assigned to it by the U.S. Postal Service. 14470 (Standard) County:Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel. Thus, Holley can not guarantee an answer or timing on an answer. ... Join Date: Apr 2020; Posts: 10; Share Tweet #1 Pin-Out Wire Colors 05-02-2020, 04:48 PM ...four digit date code is one. Holley went to Julian dates composed of four numbers: the first 3 digits are the day of the year, the fourth digit is the last digit of the year. For instance, a date code of 0311 would mean that it was built on the 31st day of the year (Jan - uary 31st) and the year is either 1971, 1981 or 1991. A date code of ….

Contains the latest V3 touch screen firmware. 3.5 in. Touchscreen Firmware - V4. Contains latest V4 firmware and installation instructions for the 553-108 3.5” Touch Screen. 3.5 in. Touchscreen Firmware - V5. Holley EFI V5 Firmware update for 3.5" TSLCD. 3.5 in. Touchscreen LCD User Manual.This link may help: http://www.holley.com/data/TechService/Technical/Carb Numerical Listing.pdf The date codes on factory Holley carbs were 3-digits up to 1973, and 4 digits thereafter. The 3 digit format was year-month-week, and the 4 digits were julian date (day 001 to 365 of the year) and last digit of year (doesn't clarify which decade though). Shoppers save an average of 13.6% on purchases with coupons at holley.com, with today's biggest discount being 20% off your purchase. Our most recent Holley promo code was added on Apr 23, 2024. On average, we find a new Holley coupon code every 60 days. Holley promo codes, coupons & deals, May 2024. Save BIG w/ (44) Holley verified discount codes & storewide coupon codes. Shoppers saved an average of $13.13 w/ Holley discount codes, 25% off vouchers, free shipping deals. Holley military & senior discounts, student discounts, reseller codes & Holley.com Reddit codes.Apr 11, 2016 · Quote. 1967 through 1969 Holley. The identification number and the date of manufacture are stamped into the forward vertical surface of the air horn. The three digit date code is broken down with the first number being the year of manufacture, the second number (or letter) being the month of manufacture (1 through 0 for January through October ... The Planning Board and Zoning Boards have been combined to form a Joint Planning/Zoning Board. The members are listed below. They can be reached by calling the Village Hall at 585-638-6367 and leaving a message for the member. Current Members: Sandy Heise- Chairperson. Herb Gray.Deciphering Ford Parts Date Codes. Casting dates show the exact day, month and year a certain part was made or cast. The typical casting date looks like " 6M08 ". Breaking down a casting date: 6 = The year of the decade. "6" for 1976. M = The letter of the month. (December)Below the list number is a date code that will contain no more than four (4) digits. See Figures below. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5. EXPLODED VIEW - MODEL 2010. NOMENCLATURE - MODEL 2010 Ref. No. Description Ref. No. Description 1 Choke Lever and Swivel AssemblyFast Idle Cam Plate Screw 2 3 Fast ...Holley date code question. Is the date code 0953 correct for 1967? aka HurdRep, Denver Dave and keeper of various 55 and 57 Chevys, , 67SS396 Convertible, , 40 Ford, 51 Mercury and a real 32 Ford three window coupe, for balance. 095=day of year. 3=Final digit in year manufactured. Holley date codes, C3 General - Holley carb date of manufacture - I have just purchased a used Holley carb, list# 1850-3, date code 0069. Does anybody know how to tell if this carb was manufactured on Jan. 6, 1969, 1979, 1989, 1999, or 2009?, 600: 37-119 37-933: 6-506 122-66: 134-9134-128: 125-65 0.025: Plain 108-83-2: 108-89-2 108-90-2: 108-27-2 134-101: 134-105 112-20: 1-1/4 1-5/16: 1-9/16, 3310 was only used as a factory installed carb on the 1965 Z16 Chevelles, as far as I know. So a Dec. 1968 date code would be an over the counter speed part, either from Chev. or from Holley directly. Jeff Helms. -65 Z16 Survivor (Red/black/white int.) ( Survivor Z16 Picture album), HOLLEY 3418-1 with 711 date code Jump to Latest Follow 2K views 1 reply 2 participants last post by Administrator jsvette Apr 27, 2018, The biggest change was the jump between the 3259 and 3259-1 main number. The 3259-1 has design features to delay the opening of the secondaries until a higher primary flow rate is reached and close the secondaries sooner as compared to the 3259 design. This makes a List-3259-1 much more suitable for a little 289 than a List-3259., Speed-Seal and Speed-Flex. Hardline. Also in Plumbing AN Fittings and Hose. Adapters. All Hose Groups. Application Specific Parts. Catch Tanks. Fuel System Components. Hose Ends., 1968 Holley 3923289 DZ Stamping Date code "833" (3rd week of March, 1968) 1969 Holley 3959164 GE Stamping Date code "935" (5th week of March, 1969) Chokes To aid in cold starting the engine, all 1967-1969 Camaro carburetors had automatic chokes that were controlled by a thermostatic coil located on the intake manifold or exhaust manifold. The ..., Holley Dual Sync Distributor Timing Control 199R11369 Date: 7-28-17 . Author: Matthew D. Lunsford Created Date: 7/28/2017 2:22:34 PM ..., Holley Carburetor Model 2300-C Instruction Sheet 199R8338 TYPICAL VIEW The exploded view shown is typical of the model carburetor this kit will service. The view may differ slightly from the actual carburetor ... Date: 2-3-11 . Title: Holley Carburetor Model 2300-C Author:, Contains the latest V3 touch screen firmware. 3.5 in. Touchscreen Firmware - V4. Contains latest V4 firmware and installation instructions for the 553-108 3.5" Touch Screen. 3.5 in. Touchscreen Firmware - V5. Holley EFI V5 Firmware update for 3.5" TSLCD. 3.5 in. Touchscreen LCD User Manual., Holley Performance Rebuilds our OEM/Holley DZ-302 Carburetor. One of the best kept secrets (or worst, depending on who you ask) about Timeless Muscle Magazine, is the rather vast array of classic iron project cars we have in dire need of attention to restore them to their former glory.In addition to our '68 Firebird and '70 Chevelle SS, we also have a '69 Chevy Camaro Z/28 you'll be ..., 1967 saw the first year the 396 V8 camshaft abandoned the grooved rear journal and matching bearing in the engine block in favor of a smooth journal like the 283/327 V8. Any camshaft from a 1965 or 1966 396 engine can be used in a 1967 or later block but not the other way around. This groove is clearly visible in this photo on the camshaft on ..., On the center carb the date code is located on the rear, left of the air horn close to the top. On the outboard, front and rear carbs, the carb date can be found on the rear, left of the main body close to the top. Carb Date Numbers. The Six Pack Holley date code consists of four numbers. The carb date does not go by the Chrysler 10,000 day ..., Engine components with date code castings 3 or 4 digit date codes. ... Decoding the Ford Holley date code. Holley Carburetors with 3 digit Numeric date codes. This sample code is from a 1969 BOSS 302 carburetor with date code 951. 9 51. Year. 9 = 1969 . 0 - 9 9 5 1. Month . 5 = May ., Where do I look for the numbers and date codes? Is there an online application guide for Holley Carbs? Thanks Josh . 1969 L-78 SS/RS Project ... I have a Holley List# 3310, part# 3878261 EH and date code of 152. This should be for a 65 396 but do not understand date code, If I am reading it right is is 1971, May, 2nd week. Someone give me ..., A date code is also cast on the manifold and is usually next to the Casting Number. This code is needed when authenticating a matching number car or truck. ... Holley: Iron Oval port: 390Hp: 3866963: 1965: 396: Holley: Aluminum rectangular port: 375, 425Hp L-37: 3883948: 1966-1968: 396: ... Date & Engine Codes. Chevrolet Big Block Heads ..., Please be aware that this is a community forum. Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel. Thus, Holley can not guarantee an answer or timing on an answer. ... Join Date: May 2019; Posts: 565; Share Tweet #2. 07-30-2020, 02:07 PM. I think you ..., 327-4. 350-L79. H.D. 3-speed or 4-speed. A total of 116,551 6-cyl engines were installed; 49,608 194cid and 66,943 230cid engines. A total of 330,813 8-cyl engines were installed; 209,338 283cid, 46,230 327cid, and 75,245 396cid engines. There is no breakdown of engine type or size by specific series/model other than 6-cyl. vs. 8-cyl., Loading..., Holley offers a variety of replacement and upgrade metering block and plates for your Holley Carburetor, Find many great new & used options and get the best deals for Holley List 7985 4 BBL 4160 Carburetor Date Code 2269 at the best online prices at eBay! Free shipping for many products!, Holley EFI V5 firmware update for 7" Digital Dash, Version 5.0.7. 7 in. Digital Dash Firmware - V4. Contains the latest V4 553-106 7" Digital Dash Firmware, includes Digital Dash Tuning Software. 7 in. Digital Dash Firmware - V2/V3. Holley EFI V2/V3 7" Digital Dash firmware and instructions. Get help from other Gear Heads!, Holley 2300. The Holley 2300 carburetor was widely used in the 60s and 70s across several manufacturers. While 2-barrels were traditionally found under the hood of more economical cars, the Sniper 2300 can support up to 350 horsepower and 14.7 psi of boost while the Super Sniper 2300 can handle up to 650 hp and 21.5 psi of boost. Unlike its ..., tech. news. Version 6 of Holley EFI's popular tuning suite has officially been released and with this revision comes a slew of race-focused updates. With a completely new Individual Configuration File (ICF) for drag racing transmission control, as well as a revised nitrous ICF, this update promises to be the best software yet!, Date codes are found on the carburetor air horn. Expect to see three lines stamped in factory installed and service replacement Holley carburetors-Ford part number, Holley List number, and the ..., Holley B2B. Holley® has been the undisputed leader in fuel systems for over 100 years. ... Promo Code Extended Price Remove; You currently have no items in the system ... Order Notes: Sub Total : $0.00. ... If any of the below information is out of date please contact Holley reseller service to have it updated. Corporate Address. Account : , P ..., Sep 1, 2023 · The date code consists of four numbers. The carb date does not go by the Chrysler 10,000 day calendar. The first three numbers indicate the day of the year and the fourth number indicates the year. Therefore, a date code of 3619 from a 1970 440 Holley carb indicates the 361st day of the year (December 21st). The 9 indicates the year 1969 ... , A date code should appear below the list number. Older carburetors have a three-digit code, while carbs made after 1972 used a four-digit code. You can always call Holley’s tech hotline and ask a Holley technician to help decipher the date code, but remember, this number doesn’t have any particular use for you, so you really don’t need to ..., Hello all, I have a holley 3139 carb , from what I found so far, it seems to be a 65-66 396 carb. It has the 3874898 ER on the top, list 3139-1, and the date code of 5A5., How do I read date code on Holley 2818-1. Guys, I have looked on the web to try to read the date code on a 2818-1 carb that I bought for my 65 L79 engine, the numbers below the 2818-1 are "0619" some of the information I have seen give the front number as the year & others give the last number as the year, Thanks in advance for any help. Don., Pour entire content of bottle into fuel tank then drive for at least 15 minutes and refuel when necessary. For best results it is recommended to add one bottle of CATACLEAN® LIQUID SCIENCE to approximately ¼ tank of fuel. Helpful?, Holley uses the jullien date code, 1908 corresponds to the 190th day of a year ending in 8. After every major design change Holley changes the number after the dash (-), hence this carb was manufactured after their 7th revision. Last I saw they were the double pumpers were -9, but that was a couple of years ago., 9.5" POWER VALVE ASSEMBLY WITH GASKET FORD 2100 2150 4100 MOTORCRAFT AUTOLITE. $9.99. Trending at $19.98. Find many great new & used options and get the best deals for Holley List 1272 Carburetor Date Code ECZY 4150 Series at the best online prices at eBay! Free shipping for many products!