Car Bounces after 60 ft. What is causing this??

looked good, but you're wearing you motor out doing a burn-out in 2nd gear at 6000rpm. put it in 2nd and hit the throttle then as soon as the slicks start spinning hit 3rd gear and go to no more them 5000rpm until you see the tires smoke. let off the brake and power out a little and go to the line. that's all you need to do.