This is a power valve and gasket for use on the many of the Rochester 2G 2GC 4G and 4GC carburetors found on pre 1968 applications.
New NOS Auto-Tune 21-707A Rochester 2G 2GC 2GV 2-Barrel Carburetor Brass Float
Rochester 2G 2GC 2GE 2GV Models 2 Barrel Accelerator Pump 21/32 Pack of 3
Rochester 2G 2GC 2bbl Weber Carb Adapter kit 55-85 fits AMC Chevrolet Buick
ROCHESTER 2G 2GC 2GV CARBURETOR HIGH PERFORMANCE TUNING KIT JETS 9 PRS + MORE
Rochester 2G, 2GC & 2GV Carburetor Rebuild Kit - 1968-71 GM & 1969-71 Jeep
Electric Choke Kit Rochester 2G 2GC Marine and Automotive Convert Hot Air Choke