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I'm replacing the intake gaskets on my cast-iron 427 medium riser stock cast iron heads heads I purchased Fel Pro #1247S-3 gaskets. My question is it looks like there is a extra port on each head near #2 cylinder one on each side. However there are no provisions in these gaskets they just cover up the ports. What are the two ports that seem to go nowhere for? By the way I have a Ford 2-4 barrel manifold.
Thanks.