Tuning Ur Drag Racer

hey everyone. got the gear set, and tires. got a 3.0. so whats the best setup for fast action?
also, my 3.0 doesnt work in one of my bits, but works with the other bit,why is this?
and the 3.0 really makes the gear set sound really scrathcy with the 3.0 poped in.

[jei$]

#1 blu gears
#2 3.0 motor
#3 remove sway bar
#4 lube axle
#5 hard tires(if u got a ZZ performance tires on rear)
#6 to prevent turnig, put the front tires on
not all the way
so they stick out of the body(preferably for not turning try it on for size =])

take off!!