how many psi to much
#3
RE: how many psi to much
Before you sell the SCr try a smaller pulley on it. 4 lbs is probably only adding 15-20 HP. It takes 5 -6 to make a difference and about 7 is as much as you should run with a stock bottom end. That ought to give you about 100 RWHP more than stock. Also have the ECM tuned, well, by a pro.