car is 67 coronet, weight @ 3800# issue is car does not 60 ft new slicks 30x 11x15 car 'bunny hopps' all in the 60 ft tried a couple different settings from 0 preload to a just touching the pad, shocks are the recomended ones rancho 9000 having set on hard settings to mid , any ideas ? vert goes to 5500, 410 gear, we have had 456, the best 60 has been 1.54 with the 456s, and 1.58 with 410s