i have mikuni 28mm flat slides ported to 30mm with fmf sst and clamp on k@ns and trail port i put carbs on same time i ported motor they have 330 mains in them and it runs great in 1st and 2nd and most of 3rdgear and half throttle but on longer pulls wide open i have to back out of the throttle or it bogs down and feels like im loosing fuel i think its jetting i dont think im pulling enough fuel to empty the carb bowls or that i need a dual pingle valve??? / anyone running same setup main needle size???