bouncing woes

i finally got my 81 camaro to hook without shakin the hell out of my et street radials. now the car seems to bounce till i hit 2nd gear. was wondering if this is a preload problem or shocks. i have slappers on and drag shocks up front. any suggestions will be appreciated. thanks.

Bouncing where, when?

ran car last night. didnt seem to bounce as much. i believe it may be in the rear thats y im thinking its to do with tractons bar setup. ive got them set up with no gap.