Rochester 2GC 2-Barrel Carburetor for Chevy 350 5.7L & 400 6.6L V8 - LARGE BASE ONLY (3 11/16" x 2 1/16") - Hot Air Choke - 1970-1980 C10 K10 Impala Chevelle GMC Pickup. Includes complete installation kit: carburetor, mounting base gasket, and fuel filter.