try a 23t pinion and see if u like the torque and if u can live with the drop off of top end well at the same time you can advance the timing on the can accordingly, if it is too much of a drop try a 24t well at the same time do the same with the timing advance on the can again until the truck is performing according to the track layout. i use to tune the motor and gearing to temp but now i just do it to how it perform to the layout. if my truck is coming off the track kool (120-140) but is maxed out top end just almost at the end of straight and the bottom end is good enough to make the jumps all the way until the end of the race then there is really no need to gear up just for what, a few more feet of the straight and then have to swing a lil wider to make the jumps ...........naw i like good bottom end on a sc and enough top to stay with anybody not neccesarily pass em in the straight. if im geared like this i can beat em in the infield cause i can cut turns shorter and dnt need near as much run start on jumps to make em and im a lot faster out of corners man. i drive fairly aggressive