I ride a lot of single track and do a lot of hill climbing. I'm on an 06 450x. As far as single tracking goes I have no complaints . . . the bike could be lighter. Hills are a different story. I'm looking for more power to get up the hills in jawbone and other hills like them. The riders that are making those hills on four stroke, green sticker bikes, are all riding modified bikes. Mostly big bore ktm's, 520s, 530s bored to 570, 580, 610 or whatever. Higher capacity carbs..... What mods can I make to my X, that will put it the class of these other machines, while keeping it a good single tracker as well as reliable? I'm all ears gentlemen.