i have an OS .12 Tr in my xxx-nt and it is rediculusly over powered, running quite rich, I dont even have enough room to hit full throttle, and i got alot of room, it will wheelie on demand, but with the .12 i find that you need to hit about 1/8 or 1/4 throttle to find the power, after that its retarded...

if your not racing a decently powered .18 would be wicked