I have my bike perfectly set-up (2009 DRZ400 B.B.kit, hot cams, MRD-SSW full exhaust, FCR-39 carb) however, due to local track noise restrictions I have to throw on the stock exhaust. Is there anyone running a stock exhaust with a FCR-39 carb @ sea level? What needles and jets are you running? I know it is doubtful but this is better than me messing about for hours on end. Perhaps I'll get a starting point. Thanks in advance! S.