[Jeff Chambers]

Definitely. Though you're starting to get a pretty decent listing of modifications, the combination is still pretty torque limited. The only way past not have the engine torque is to develop mechanical advantage. Rear gearing is one way to improve that mechanical advantage. 3.27's are no way near enough gear for your combination. I'd recommend 4.10's at a minimum and even 4.30's if you're not a 100 mile-a-day commuter. I loved the 4.30's with my EFI combination on the street. The acceleration is fantastic and 5th gear actually becomes useable around town without bucking like a bronco. The money would be well spent IMHO.