Friends, lovers, Chevy cretins....Let's unf*ck a Six Pack
Actually the outboard carbs have idle mixture screws.
I just rebuilt 2 sets. One is a vacuum setup and the other is a mechanical set.
Call Allstate carburetors in NY. for kits / parts.
These guys are great help. Jim or Jarred.
Home Page - Allstate Carburetor
They will have the kits and are very knowledgeable.