Here's a 450 hp @27 lbs custom m/c express intercooled and carbed XX...will make over 500 at the tire at bigger boost levels,but why?...Carillo rods,Je pistons,cams,valve springs,1/2 inch head studs,back cut trans,lock up clutch, 61mm shoot out turbo etc,etc. not cheap,but repeatable hp and smoother than any busa i've ridden...and hidden pretty well.