I have a 1971 Lemans with a Chevy 350 with Square port heads. I didn't realize there were so many differences in chevy headers and inadvetantly bought flowtech headers that are oval port and leak at the gasket, including a copper gasket. I am considering doubling up onthe copper gaskets, a sqare port against the head and a round port against the header flange and see what happens.
I need advice on either how to seal the gasket leak OR the obvious, what part number to do I need to use to find a set of square port chevy headers that are designed for a "chevelle" with factory a/c.
Thanks for any quidance, without flames!
Bill
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