I am not sure what all went down exactly. I backed the car up in the driveway so i would have a bit of room, never trusting things will go perfect . I was right! I was trying to test the airshifter , which i put on an MSD shift light circuit. i had the rpm set at 3200 so i could get it to shift and still hold the car, or if it moved, stop it. After backing up i let go of the transbrake button and the car launched like the throttle was wide open. When the transbrake is activated, an ACD throttle controller colapses to my preset launch setting. Either my foot got in the way, or the throttle stuck, and away we went! I had my foot on the brakes hard, but that is no mach for almost a 1,000 hp!. I reached over and took a swipe at my switch panel, and hit the ignition switch off. I got it stopped about ten feet from the garage and trailer! All i can say is i say a prayer every time i get in that car, and I believe I got help!!!!!