Track Time

The rear shocks are long enough. I did check that. The rear of the car is rising a good 3+ inches. What would be a good adjustable shock for me? Snubber clearance is 1/4" from the floor. I should have tried launching at a lower rpm but I was changing one thing at a time and ran out of time. I was launching at 4,000, shifting at 6,800 and going through the traps at 6,800.