hey guys what size turbo would you use for a 750 cc engine. im going to rebuild my old cb750f for a drag bike and use the fifth ave as a daily driver. it kinda sucks when your in the middle of modifying something and dont have anything to go get parts with. i was gonna mod the fifth for drag racing but i got it how i want it so ill just make the bike go faster. the fifth started with 136 hp and 259 lb/ft of torque. now it has 192 and 293 not bad for a set of headers, a 4bbl intake with a 2bbl carb, and a set of dremel ported and polished heads. and it gets 19.5 mpg. it also lost about 200 lbs all together.