I won't mention the obvious cure to your problem, which you probably already know. I was asked to consult with a fellow dirt track racer with a handling problem similar to yours- - - -the car bounced around the track like the rear end was on a trampoline. It turned out he had installed the rear shocks upside down because "that was the way they bolted in!" To make matters worse, the upside down shocks were coil-over "load levelers". Installing a set of 50/50 dampening race shocks in the right orientation solved the problem.

How much travel does the suspension have before the bump stops contact something solid?
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!