Has anyone with a CC305 passed emissions? I'm doing a ported head/CC305 swap, and installing MAC mid length headers. I've got the MAC catalytic conv. bypass pipe , but I can still bolt a cat on it when I need to have it emissions inspected.

 

As long as it gets tuned (computer chip) and you have a working cat, GMHTP made 420 at the wheels in their 93 six speed 396.

 

it should have no problem passing, given that u do have a full exhaust system.

 

You should be able to pass no problem!