ok so last saturday i took the wife out trail riding, bike ran great for the first hour or two and then out of no where it starts missing/hesitating real bad in midrange. so i ran back to the truck to swap plugs, still doing it. it wasnt poping or acting like it was lean but i dropped the needle just to be sure a clip and then it realy got worse. so we loaded up and headed home. since then i hav put brand new intake boots, checked my reeds (all looked good) cleaned the hell out of my carbs, checked compresion, put all new gaskets fuel lines and vent lines on and cleaned my filter and its still doing it. it fires up on the first kick and purrs like a kitten. all is good till you hit the midrange and it starts hessitating real bad and once you give it enough gas it starts running great in the top end. my mods are coolhead 21cc domes, fmf fattys, vf3s, k&n, timing plate set at +4(checked it hasnt moved) im runing 30 pilots, air screws 2.5 turns out, needdle on third clip, and 300 mains, bikes ran great since i rebuilt her a few months ago and nothing has changed and all of a sudden it jsut happened