Ok. Here is my problem. I have a big trip planned for this weekend and am almost done with the complete rebuild of my 2003 WR450. I just fired it up for the first time in over two years. I need help with the Jetting and was hoping to find someone else with the same setup as I have and just "copy" there jetting. Because I will not have much time at all to "test and tune". So here is my set up, I have the JD jet kit and installed according to there instructions (cant remember which needle but I think its the 168 jet). I also have both powernow and powerplus valves installed, I have the quick shot and a brand new FMF 4.1 full system, I installed the zip-ty fuel screw and hot start nut, its got an iridium spark plug, installed the twin air system and modded the hell out of my air box. I live in Colorado at an elevation of 5600 feet. Thanks for any help!!!