I purchased an upper and lower GT-40 intake off of ebay. When I received it, to say it was filthy, would be an understatement. I got the upper plenum almost spotless, but the underside of the lower intake is coated in what could be best described as a burnt tar substance thats stubborn as a mule to get off. My plan is to bead blast the lower once I get the funk off but I can't figure out how to remove the oil baffle to get to a majority of the goo. It appears that its held in place by pressed in studs, but I can't get them to budge. I could obviously just cut it off but I want to put it back in place once I'm through cleaning it. What is the best method to get these studs out without damaging the baffle?