Quote:
Originally Posted by Chazman
Off the top of my head, Pure Stock allows an added point and a half of compression, gear ratio changes, bigger exhaust, carb tuning, bigger tires, etc.
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That's my understanding as well. A roller cam 5 speed Fox coupe with those mods could crack 12s with a very good driver before the factory Goodyears become an insurmountable obstacle, so I'm curious as to why a TPI Camaro can't at least get in the bottom half of the 13s.