My camaro is stock, except rear ratio and ported heads and intake.
I read through the forum about cams but I can't figure out which to use. (emission is not an issue)

 

ported heads and intake, but what about exhaust? i assume you have headers? a good cat back system? if not that'd be something to get before a cam. Also whats your target hp? and what do you plan to do with your car.......daily driver? daily driver/track, daily driver/autox, track only? it'll help people give you some options.