I wouldn't ever use plain old style cork gaskets,but haven't ever had a leak with rubberized cork gaskets. Spray only one side of the intake gaskets with 3M contact glue. Then massage the gasket onto your intake manifold so that the gasket fits the intake ports. Once the glue firms,your ready to bolt down and not worry about the gaskets sliding around while tighening bolts. I always retork once more after the engine has heated and cooled several times. Be sure you use the 4 cork O-rings that come with the gaskets. Squirrel Crusher