So I am looking for advice /suggestions I bought and re built a 96-97 cbr 900rr displacement 919cm and it's got a home modified exaust tip a and a hi flow air filter in the air box and a jet kit. Running #135 jets across the board. Also running 17'' tires both frunt and back and 43 tooth sprocket in back and I think a 12 or 13 tooth sprocket in frunt. And am looking to get more over all power out of it and it is my daily driver.i am looking for advice on a good bore kit I want to go as big as I can with out having to bye sleeves or replace coils.i do want to up grade cams over size valves and have the crank ballanced and balance all that I can basicly make it a roaler rocker mother but with a bore kit