hey guys i just got a 1996 115 merc with supposedly a new powerhead (30 hrs). It had been sitting for a couple of years so i had carbs rebuilt first thing. When i took the boat out it will only turn 4000, (i had a 1995 100hp on before, and i used the same wheel). checked spark and have good fire on all cylinders, 130-135 compression on all four. when i pulled the plugs out they seemed to be drenched in oil. any good ideas