ok i run a mmp and a tekin sc4x 5.5 i like how it jumps and runs except the straights i get passed it clocks in a 34 mph and every time i get passed iv went from a 15 tooth pinon to a 18 tooth pinon but still it gained like 1mph if that should i go down to get more rpm or what i came from nitro so i dont know much about electric if any one has some ideas let me know thanx