STLNLST:looks like you have a pretty good set-up for Billy,s track.Have you ever tried running a mid roll center in the back?All you have to do is either cut the high roll blocks .060 or shim up the low blocks.060.Then use the 4R block in the upper holes will give you about 1-2 degrees of anti-squat.This is how Paul Lemieux and I ran are cars at the Novak Race.This adjustment works really good when the traction comes up.I have been to Speedworld before and the traction seems to get very high.Good Luck to you ,Brian