[geeteeohguy]

Originally Posted by carbking

Further:

Carter used the 3/4 inch pump in their "Competition Series" (read street racing or actual racing) AFB's.

Part numbers for the Comp Series carbs:

4758s - 500 CFM
4759s - 625 CFM
4760s - 750 CFM
4761s - 500 CFM (chokeless)
4762s - 750 CFM (chokeless)

All of these carbs used the largest pump ( Carter 64-418s).

If you find an American manufacturer of this pump, please let me know. I get tired of fabricating them by hand! They have been obsolete for decades!

Jon

Jon, I just got a nice leather accelerator pump from Carbs Unlimited for my WCFB Carter. ('61 Corvette) Other sources are Chicago Corvettes, and Mikes Carburetor Parts.

[carbking]

Originally Posted by geeteeohguy

Jon, I just got a nice leather accelerator pump from Carbs Unlimited for my WCFB Carter. ('61 Corvette) Other sources are Chicago Corvettes, and Mikes Carburetor Parts.

No problem on these pumps, they are commercially available (USA made) at the wholesale level.

Much different pump.

There are about 10 or so different diameter accelerator pump cup leathers. Several of these I either have to mold myself, or if there is significant demand, there is an American company that will mold a minimum of 2500 of one diameter.

They range in size from about 5/16 inch to one used by Cadillac on their V-16 that was 1 1/2 inches.

Jon.