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Mr. Gasket #257 header gaskets have the four holes. They're designed to work on the CJ heads which also have four holes per exhaust port. Don't confuse these four bolt holes with those on the GT heads as they are different with the upper top end holes being slightly lower than your conventional two hole or CJ head. There's different header gaskets available for the GT heads but the Edelbrock heads with four bolt holes per exhaust port match the CJ's.