raceguy13sc
Registered User
I have a 90 5spd sc. It has a K&N conical fillter and a Hypertech chip. It also has gutted cats. When I give it full throtle in say second or third gear it puffs a big cloud of black smoke. It lookes like a friggen diesel truck. This doesnt seem right to me. Any one have any ideas? Im have also replaced the O2 sensors in the last few months. Thanks for any help.