I have a 1957 Ford car with a 312 engine and a Ford Autolite 4 Barrel carburetor. Can anyone tell me the CFM rating for this carburetor? The later 4100 carburetors were rated at 480 CFM and 600 CFM, but I am unable to find the rating for the 1957 Carburetor. Thanks for your help.
Don

That's the rating for all of them. It depends on motor size. On a 312 it's probably the 480. If the tag is still on it what does it say? It should have two rows of info.