Several things I have treid over the years to calm the car down on the starting line and limit the hieghts of the wheelies,stiffen up the front shocks or tie the front suspension down with a travel limiter,put the ladder bar in the lowest hole in the front, make the stall RPM as high as posiible so the motor CAN'T flash the converter at all, ie throttle on the floor on the trans brake when the first bulb lights up, WOT