So i took my car to the track last summer and ran a 12.4 @115 mph.

I have an 02 ls1 in a 88 gta with a 9" and 4.11's also a t56.

LPE gt2.3 cam (207 / 220 .571" / .578" 1.7 ratio)
1 3/4" LT's
3" exhaust (slp loudmouth)
25% UD pulley
ls6 intake (stock)
ported tb
K&N filter

I was wondering what I could pick up (mph) by adding a set of patriot 5.3 heads. If i had to guess, i would say im about 370-375 rwhp right now.