Black_Chrome said:Ive seen stock 2003 RCSB 5.3L 4x4's run 16.7's, and the 4x2's run low 16's. My 4.3L is pushing 17sec flat, almost as fast as a stock 4x4 V8 :crazy: but ive got intake, exhaust, and, tbs. Gigantic heavy 20x9 Rimz though:driver:
If it's in good shape,you should be running near 15.75. What track are you going to?tschmidt098 said:I have a 1997 GMC RCSB and i raced a 2001 RCSB 4X4 and i beat it by 3 or 4 truck lengths. what do you think i will run when i go to the track in a couple of weeks
all i have on my truck right now is exhaust
you'll prolly be hittin 14's if the nelsel tune is as good as it sounds, and i know headers boost your time about 3-4sec alone :head:Joshs2002Silverado said:hey i ran a 15.414 with hypertech, K&N intake, exhaust, .......now i have the NElson tune, and headers......how much do you all think my time will drop......any guesses...
so if you have a truck that runs 15's....and then you put headers on it...you'lll be running 11-12's?Black_Chrome said:you'll prolly be hittin 14's if the nelsel tune is as good as it sounds, and i know headers boost your time about 3-4sec alone :head: