So I replaced my power head with a used one last fall had to do a few wiring conversions because they power head was 2 years newer but I just put all my original parts on right down to the carbs, so my problem is I have a serious lack of power barely gets on plane and will not get over 4-4300rpms, when you first put the throttle down it acts like its going to rip but then falls on its face, choking does not help and neither does pumping the primer ball, the engine sounds good and fires up and idles great just no power, any help would be great!!!