Ok I know you all are thinking another carb jet question.Ill make this simple and im sure this has been covered to death and I apologize.... specs: 05 drz 400 S 3x3 mod FMF powerbomb header and powercore silencer w/quiet core Columbus Ohio(sea level?) From what Ive gathered I need to install a 155 main jet(full exhaust)...yes? Also Ive read that I can keep the stock 22.5 pilot and buy a keintech extended screw or go with a 25 pilot and keep the stock fuel screw...yes?Which option is best?Im thinking keintech screw and keep stock pilot to make adjustments easier??? Previous owner installed a DJ stage one jet kit so I assume I have the preferred needle and slide springs because the DJ box that came with the bike appears to have the stock needle in it.How do I tell?Needle in there now doesnt have any part #s on it... Clip position 4th from top...yes? Ok lastly Im ditching the vacuum petcock....cheapest option and where to buy? Thanks a ton this site is the best by far and you guys definately know your stuff!!!!