i have a 99 with 38s and a diablo predator
when i get wide open on it pulls till like 2800 rpms then the motor keeps revving but it doesnt seem to gain speed. am i just imagining this??>???

Thank You
Charlie Williams

 

have you re-geared? 3.73's are awfully low to be running anything more than a 35'' tire, and that is pushing it. if you haven't re-geared, your effective ratio now is 3.10:1, and a 4.51:1 ratio would put you back to stock. so therefore, you would need 4.56:1's