If you are looking for better 60' times and more control, look no further than QA1's "R" Series Pro Coil System. Built specifically for drag racing, this system has 18 valving options of rebound adjustment and a firm compression, to give you the control you have been looking for. Choose a spring rate specific to your set-up to store energy and transfer weight the way you prefer.
Note: These recommendations are general guidelines only. The weight of the vehicle, personal ride preferences, etc. need to be taken into account when selecting spring rates.