2008 zx6r, so this winter im thinking about goind threw my bike basically. Question or advice im seeking is - what can or should i do to my engine? Bore job, bigger piston, friend said sumthin about rave valves. Getting a game plan together so i can start figuring out what i need. Appreciate the advice, really love my bike and love riden. If im not in my bike im lkn at stuff for it or reading on here.