always through first it pulls , half way through second gear it start bogging down then itll will kick back up with some power an third doesn't have any power at all unless your flying even downhill it bogs down when u give it throttle the carb was recently rebuilt an I run 92 octane cuz its mixed heavy it had a top end rebuild not long ago , the problem would happen b4 the heavy mix as well and second gear is getting better or so it seemed today as I'm still slowly breaking it in , any suggestions?