Simple Question. When I accelerate my Nitro Evader it bogs down B4 it takes off. When at high speeds it sputters once in a while but runs great most the time. Warm or cold it seems to....lag or bog down when I give it lots or little throttle. I havent messed with the Low speed screw much at all from break in. I have adjusted the High speed to what i feel is a good place. But I can hardly spin the wheels or even lift them off the ground. I know its not the Slipper or the Diff as you can hear the engine bog itself almost to a stall.
Suggestions would be most helpful