Intake manifold pulling oil

Make sure your intake bolts are able to go deeper into the head than the thickness of the intake flange. I would take the intake to be trued up at the machine shop. But check the fitment without gaskets first to see how loose or tight it is. If it's on the loose side, (I like to see them almost snap into place like a puzzle piece!) take two sets of Felpro 1213 gaskets (.060 thick) and put a skim coat (use a body filler squeegie) of Ultra Grey Permatex (high stregnth silicone, use a body filler squeegie) on the blank sides that don't have the neoprene. Sandwich them together, and put another thin skim coat on the side that goes on the cylinder head on the large surface, almost to the neoprene. Bolt them to the heads by themselves and let them set up before before removing the intake bolts. Skim coat the intake flange side of the gasket almost to the neoprene. Lay the Ultra Gray (I recommend caulk gun tubesof the stuff!) and install the intake and torque it down. Dont forget to put thread sealer on the intake bolts. It's best to let it set a few hours and then retorque it if you have to do this, there's going to be quite a bit of compressing of those gaskets going on as it takes a set. It's not a bad idea to pre-fit everything dry beforehand to make sure you've got enough room. Sometimes, you'll need a little thinner second generic parts store paper gasket to have it fit properly. OR SOMETIMES, EVEN A THIN PAPER GASKET BETWEEN THE 1213 FELPROS. I've had very good success with this method with getting loose fitment of intakes to seal up. Good Luck, let us know how this works for you!