Re: 103 Big Bore Kit
just had 103 kit installed on my 2007 road king already had rinehart tru duals se hi flo air cleaner and sert. added se flat top pistons, se cylinders. 255 cams, heavy duty clutch spring, assorted springs and gaskets. After dyno tuning went from 67hp and 70 ft/lbs tq to 95 hp and 100 ft/lbs tq runs and sounds great cost 1590 dollars including dyno time.