I ordered Fel Pro 1233 intake gaskets for my '65 389 GTO. They appear to be a heavy paper material solid black on one side and a blue stripe around each opening on the opposite side. I have cast iron heads and an aluminum intake. Does it matter which side the blue stripe faces, head or intake? Also, Do I need to use RTV sealant around only the water jacket openings, or should i use it on all the openings? Should it applied to both sides of the gasket or one side? You're advice here is greatly appreciated. See pics. Thanks!
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