Trx 250X Top End

[djmac]

I want to increase top end power on my trx 250x :devil. i have bored it 20 over gave it a 12 to 1 compression piston runs on racing fuel and has a k&n air filter i was thinking of putting cams and new valve springs. how much improvement is that? is there anything else i can do? :devil

[TRX300X]

If you want to make the most out of it get a big bore kit, pipe, carb, valves, valve springs, and cam.