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

Steve, I agree with your front end assessment, but even if his "tail end" is light, the 6.5lbs kinda makes me cringe? Not sure of the track conditions in the vid, but the car looks to wash out a little down track. I don't want to see him put her in the fence on the big end...

Maybe I missed some info, Calvert shocks here with bars? or only the shocks with stock springs?