1967 Pontiac Executive Engine: 6.6L V8;FuelSystem: 2BBL; 2 Bore Gasket; Individual throttle bores;. 1968 Pontiac Executive Engine: 6.6L V8;FuelSystem: 2BBL; 2 Bore Gasket; Individual throttle bores;. 1970 Pontiac Executive Engine: 6.6L V8;EngineCode: WE; 2 Bore Gasket; Individual throttle bores;.