for me, gave my 350 a snappy'er throttle. i put a JP3 pipe on mine in my truck and it rips pretty good. i have good run time as well. im sure not the power like the big $300 dollar engines, but for me its just as good.

losi 350, turbo head decent pipe.. OS P3 plugs. 30% nitro.. not a bad setup.

oh and my tune didn't change. some people might have a harder time dailing it in, but dont let it discourage you, i think mine was 2 hours lean on the HSN. thats IT!