Quote Originally Posted by TXsilverado View Post
its there...at your power level, something as simple as a short belt can push it into the 13's. look into the free mods...or buy my ported throttle body. a tune will knock it into 13's no doubt.
I thinks its more in the tune, its a 98 motor, with 2001 computer, aftermarket pump, different year MAF, Only running 1 o2 sensor..LOL need to get the other extention made..I ported my TB first mod...could be off a bit in A/F, but it might be somewhat close considering mods/times it ran