Hmm..still sounds a bit off. The car should be pretty tight. Like go-kart tight. I would check steering (slop and bump) and then look at the shocks. also check to make sure you are riding or hitting the bumpstops. Cars do scary things when the suspension is bottomed out. I'd also do a nut and bolt on the front suspension, make sure nothing is loose. Check heims, everything. When were your UCA's produced?