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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Nov 2002 Posts: 2,763 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,763 | The Carter YF's were identified by two different methods:
(1) The vast majority were identified by a stamped 3 or 4 digit number, followed by the letter "S" as is (S)am. This stamped number will always be found on the CENTER casting.
(2) A very few YF's were identified by the number being stamped on a triangular brass tag under one of the screws holding the top casting to the center section.
No other numbers have meaning.
The smallest possible 3 digit number is 735s.
Jon.
Good carburetion is fuelish hot airThe most expensive carburetor is the wrong one you attempt to modify. If you truly believe "one size fits all," try walking a mile in your spouse's shoes!The Carburetor Shop | | |
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