Well i started doing the gears in my car today after finishing the 24# injectors, pro-m mass air, 70mm tb, u/d pulley, electric fan and ac eliminator yesterday. The car felt way more responsive after just those things, so i can't even imagine what its going to be like going from 2.73's to 3.90's!!! haha anyone have 3.90's out there with similar setup? what do u run in the 1/4? how sick was the first test drive? im going to be finishing it up tomorrow so i cant wait!!