Introduction A carburetor is a device to mix air & fuel for internal combustion engines in the proper ratio for combustion. The fuel & air mixture is too rich if it has an excess of fuel, while too lean if there is not enough. Therefore, to make sure the proper engine function & have a nice driving experience, a good quality carburetor is highly recommended. Application Compatible For Chevrolet Engine Models Compatible For 350/5.7L 1970-1980 Compatible For 400/6.6L 1970-1975 (Note: Not fit Compatible For chevy 305/327 engine) Compatible For Chevrolet B60 1980-1980 Compatible For Chevrolet Bel Air 1970-1975 Compatible For Chevrolet Biscayne 1970-1972 Compatible For Chevrolet Blazer 1970-1974 Compatible For Chevrolet Brookwood 1970-1972 Compatible For Chevrolet C10 1975-1980 Compatible For Chevrolet C10 Pickup 1970-1974 Compatible For Chevrolet C10 Suburbanr 1970-1980 Compatible For Chevrolet C20 1975-1980 Compatible For Chevrolet C20 Pickup 1970-1974 Compatible For Chevrolet C20 Suburban 1970-1980...