My brother drives his car all over the place and he drives it with the preload on the springs and its fine. We just switched the shocks out in favor if double adjustable AFCOs in the rear. The front are the QA1 Stocker "R". Hopefully the shocks help us out. Best 60 foot so far has been a 1.401.

10.53 @ 125mph. 1.37 60 foot. Caltracs and Monoleafs, AFCO shocks.

Heads by INDIO MOTOR MACHINE; IMM.
CP Pistons, PC Carbs.