Depends. I had my Billy's at 2.5 with a daystar 1.5 spacer in the rear and the ass was about 1" taller, which I wanted. So depending on what height you want adjust from there. I'd do 2.5 front with spacer in rear personally. 1.75 and no spacer will give you same rake with less overall lift.
Tried blood magic, had no heat. So if Billys all around, no spacers at all, even in the rear?
