Hey Shocker,what size/brand of tire are you running?My compression is 10.5 to 1 with a solid roller .631 lift 252@258 @106.I,m gonna try with the 26 inch again and get the 1 inch spacer.I haven,t tried jetting yet as it,s a new AED850HO(apparently flows 930CFM)I,m also running advanced at 36 total.Guess I,m gonna have to play with it this coming saturday,would like to run a couple tenths faster before PINKS at the end of the month.