And working with Joe Moore in the past from Fox I've had the best success with getting my spring setup correctly by using this formula as a starting point. 3 & 1/4 in of preload with 30 to 35% shock droop. That should get you ballpark if you have 35% group currently with no preload you're extremely over sprung. The best way to do it is to borrow Springs from some friends and try several different spring combinations until you get to the desired ride height with 3 - 1/4 inch of preload. And then valve your socks to prevent bottoming out. Also engaging that crossover ring too soon can make your car non compliant through the whoops.