I'm running a 300 main with these mods, full shearer pipe, uni air filter, and the airbox lid removed..... i live in va and the temperature is hovering around 20-30 degrees most days........ i cant do a plug chop because there is 3ft of snow on our driveway.... am i lean? or just right? It doesn't fall back down to idle very fast, i adjusted the airscrew screw and that seemed to fix it..... i dont want to blow it up considering i dont have the money to rebuild it at the moment.... thanks and YES I DID SEARCH!!!!!!!!!!