Ok don't no what the issue is but the car wont move it accelerates but wont move. If i pick the car up it takes off like a bandit in the air. This duberunner has had maybe 2 gallons of gas ran thru its still in brand new condition. I recently had it apart to drill holes for the futaba servo mount an put everything back together. It worked fine until i did the uograde an help would be greatly appreciated thanks.