Once I get my walbro in and my boost constroller installed, then Im going to crank the boost a up a bit. Like I said, Im only running a bone stock block with head an cams at 5 psi and it pulls alot better then my old hatch with spray. (13.5@106 2.3 60 foot. stock ls motor shaved head an spray, even had stock exhaust!) I dont loose any power between gears and if I did then I would just have to go back to power shifting if I even saw it falling off boost bad.