Re: big block headers?
GM stopped installing big blocks in Camaro's around 1973. An install in a '79 would be a custom job. The best thing to do is to look for Headers that fit an early '70's Camaro as the 2nd generation Camaro's were from 1970 - 1981. The engine mounts did change to the clam shell type in the early to mid '70's. This may or may not be an issue fitting Big Block headers to a newer sub-frame.
69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1