Ok I'm new to 12th scale. My LHS is trying to get a 12th scale gt class going. So I bought a Schumacher Supastox. I can't seem to keep the car from going left when i hammer on the throtle down the streight. I loosend up the diff but still doing it. I run a 17.5 blinky with a 70T spur with a 28T pinion. Can anyone help the Supastox thread seems dead.