I had a similar situation in my old 95gt (5spd, headers, H-pipe, pullies, borla, intake, suspension work). I pulled up next to a guy in a 67-69 camero which was painted purple. It said "396 ss" on the side, but it sounded more like a 350 with exhaust, though I couldn't tell for sure. Now I am not one for street racing everything I come in contact with, but this guy was giving me dirty looks, and I was curious as to what this guy was running under that hood. You see f-body's all over, but rarley run into 1st gen cameros, let alone a possible 396 ss. The light turned green, as we both tip toed around the corner into a straight away. We both opened it up, and before I was out of 1st gear (which took awile with my 3:07's) His engine made a LOUD pop pop bang sound. He pulled off and turned down a side street. In my rear view mirror, I saw TONS of smoke coming out of his tailpipes.