If I were you I would look the springs over, and maybe remove one leaf. Also, maybe re-drill a leaf or two to "stack" them forward to put the stiffness on the front segment. As the tire creates some friction, the front segment will try to rotate, which will lift the car, and push the tires down to the pavement. also have someone video the launch. You want both wheels spinning, and the car to rise. my 2 cents Rich