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I can find the flat gasket that goes between the manifold and riser but I can't seem to find the correct "half" donut w/sleeve gasket locally. I tried the fiber 'full' donut which worked for awhile but is leaking again.
It seems the metal donut might be a better option, I'm just not sure how well it will seal on the pipe as it's flat to accept the sleeved gasket.
Thanks for the response, actually, it's the passenger side, the drivers side gets the 'full' donut.
That IS the donut that I'm wondering how well it will work with the riser.
You want the Felpro donut which is much more robust than the fiber kind. I think I got mine from Summit Racing. Like you, the fiber one only lasted one summer in my 71' SB.