98nightmare
Bill
They sell all kinds of performance parts for the non vortec 4.3 if thats what you have? As for the vortec your limited to a gas saver cam, throttle body spacer, intake manifold spacer, and cat back exhaust.. maybe a chip, and a K&N filter.. Options are slim cause it has sooo many sensors for the air fuel mixture.. and an exact pressure fuel system. Most GMT400s have a $25 fuel pump.. mines $260.. I hate the lack of performance parts available for these motors