i think the standard 3 port is an rtr motor, for $60 more you can have the race 3 port which is ballistic. don't skimp on motor cause you are just gonna get a nother one anyways, get a good one to start.

what does the nova rossi carb do to te go motors? i've heard "they really wake up" and "they are easier to tune" but all i got was less run time and a slightly larger tuning window, i'm going back.