I've got a malossi big bore kit on a 1981na50, treatland intake, vm20 mikuni carb (with jets that came with it) .starts and idles fine. Bogs and barely moves with me on it when I try to accelerate. No power worse than stock. The lack of power when stock is reason for the kit. At a loss need help.im hoping it's a jet issue? No idea which to use? Just bogs any help?