That oil is more than likely a result of oil vapor from the PCV system. Odds are you're intercooler is probably caked in oil. My suggestion..... get some coil cleaner from an a/c shop or aircraft stripper from home depot. Get an oil separator or build one ( I built mine with a Wilkerson air/water seperator). Get some NGK TR6 spark plugs. Get a 3/8 NPT plug. Pull the blower and intercooler. Soak them in which ever cleaner you buy while you swap your plugs. Then reach around behind the lower intake and pull the PCV elbow off, then plug the hole from the inside with the 3/8 plug. Next put your seperator on the passenger side and then put it all back together.
