i have a 1988 2.5 mercruiser inboard that has been sittting for a couple of years. did the usual carb rebuild, drained the gas, new points and condenser, plug wires and spark plugs. also i cleaned the distributer inside, set the dwell and timing to specs. the problem i am having is running the engine on muffs i get a miss, bogging, and or gas misting out the carb at about 3/4 throttle. my tack does not work correctly so i am guessing it is about 4000 rpm and the max wot is about 4200 by the specs. my question is is this normal being run on the muffs with no load on the boat or do i have a problem somewhere? running out of thing to check or try.