Jato with Neu 1515 motor.

It will leave the 3.3 in its dust.
It has unreal take off speed.
I have got the tranny locked into second gear. ( first gear has now been removed)
I am runing a 54T Spur gear and a 33T pinion gear.

The only issue is that if you are at say 3/4 throttle then give it full throttle it will just filp over.
It may be a tad overkill but it is a real fun truck to drive plus it teaches you more about throttle controll.