ROCHESTER 2GC & 2GV 2-Barrel: Description: Notes

Carburetors are of a 2-barrel downdraft type with side fuel bowl, 2GC models are equipped with an automatic integral choke. The automatic choke housing and thermostatic coil of the 2GC may be located on the air horn or throttle body, depending on application. The 2GV carburetor is also an automatic choke model, however, a vacuum break diaphragm unit is used in place of the conventional choke housing and piston. Two different sizes of the 2GV carburetor are used. The 2GV-1 1/4" models are used on the 307" V8's and the 2GV-1 1/2" are used on all other applications. An Exhaust Gas Recirculation system is used in conjunction with these carburetors. The vacuum supply necessary to operate the EGR valve is located in the throttle body and connects through a channel to a tube which is located on the choke side of the float bowl.