I hope you don't have the same problem I had of course I'm have the worst of luck. I foolishly used the metal ones. The engine started smoking and retorqueing the intake did no good.
I replaced these leaky metal gaskets with the FelPro 1243 gaskets and THEN I had no trouble. Those are some outstanding intake gaskets.
Also note how the intake gaskets don't match up with the head ports. Thats why its good to gasket match heads. lol