I just bought Randy Gilberts Sy. Its a T72, super motor, stage 3 vortec's, etc etc etc. The truck has the zr1 17x9.5 on front w/ 245 45 17 and 17x11 315 35 17 BFG GFORCE TAs :o . with like 1 or 2 lbs of boost, the truck will give a nice "puff" off the tires, but hook up fairly well...