I recently installed the SR Performance V2 coilover kit on my mustang and can not for the life of me figure out how to adjust the rear suspension. Currently I am 1cm away from the bump stops with the spring perch maxed out on both sides and whenever I hit a overpass my whole rear kicks up. (I'm guessing it's hitting off the bump stops). I extended the rear shocks a whole inch and it didn't change riding characteristics of ride height. Any help would be appreciated! Thanks!