I ordered a WR450F for endurance beachracing. I did that because of the benefits in cooling capacity, gearbox, e-start,bigger fuel tank. My suspension got to be revalved/new springs anyway. My question now is how to get my engine at the YZ450F level??? Are there any dyno results available of a standard/prepared WR? Wich are the major differences between wr and yz engine? Cams? Exhaust? What with the jetting specifications? Airfilterbox? A lot of questions, i know, but after reading a few posts here i become to be afraid that i made the wrong decision on how easy it was to transform wr into yz horsepower!!! HELP!!!