Yea I was also going to say the SS is not any faster than the regular Z28. I know cos they looked the same in my review mirror
Actually it is because the ram-air doesn't do jack (at least not worth what it does for the weight of hood, just looks good) and the SS is heavier.
Oh yea if your buddies car was pre-2001, then it will get spanked by a 01/02 Z28 or SS. Unless he has a lid (exhaust doesn't seem to matter as much on those cars, except the damn cut-out)
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Black SN95
TFS heads, Holley intake, AFM B-2 cam,
12.9 @110mph best ET
13.06 @111mph best MPH After gutting out clogged cats and a much better tune. Took Nitrous out for warranty work

didn't have time to put back in for track.