Since Carter is out of the Carb business, whenever I go into the hot rod shop to get a part for my 600 CFM Carter AFB, they give me an Edelbrock part. Late production Carter AFBs are compatible with their Edelbrock clones. The gaskets are definately the same.
Edelbrock has done some "tampering" with the needle/jets; instead of Carter's small, medium & large approach, Edelbrock has introduced a whole rainbow of intermediate sizes and spring weights, just to complicate matters. Or so I gather from comparing the Edelbrock Tuning Manual [War & Peace] with the Carter instruction sheet [telegram].
I just ordered a EDL-1404 500 CFM today for my '68 292 w/ Offy intake & Clifford headers. They [Carter] don't make an AFB 400 CFM anymore, and I've had it with my 27 -year -old Holley 390 CFM.
I/I #4101
'71 GMC Jimmy 350, sm465, np205,3.73 posi.
'68 C/10 Stepside 292 (.030 over) Offy Intake, 500 CFM AFB,Clif headers, sm465, 3.73 posi.
'67 K/10 454 project.
'72 K/5 rolling frame project.
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