Troubles with jetting and stumbles. Anyone good at this I could really use someone to talk to. I´ve jetted many times and no matter what I do if you floor it it breaks up till high rpm and all the valves are right , sincronized you name it. Changed needles to every position nothing works. It wants to run an runs great bone cold. I´ve got big mains in it right now and . One step up primaries. Adjustable needles set as lean as possible. I´m lost. Please help if you can. My name is Joe. My number is (417)576-1552. The bike is headered with supertraps. And k&n filter. I can´t make it run rich. Got .35 mains right now. I´m frustrated. I think needles are wrong but not sure. Please help. Thnx