I would suggest the Nitto NT-555R's, Im runnin 467 rwhp in my Z and I bag them to like 12psi and I raced a 3000gtVR4 the other night at the track and he maybe got me 1/4 of a car link off the line, I was dumping at 4700 rpms. My friend also has a 2000 ram air firebird and he is riding on the MT Street Drags and his mottor is built and he is runnin a 175 shot and rolls 20 ft outta the hole and runs the nos