Exhaust manifold gasket

I just used one on my 75 valiant a few weeks back. I think it's pretty fantastic. I did a 2bbl conversion using a modified Offy intake which was nice and straight. I planned on reusing my original exhaust manifold and of course there was a bit of distortion.
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I wasn't about to shell out scratch for machining...With the thickness/crush rate of the Remflex I was confident this wouldn't be an issue. After removing it from the package I did notice some separation of the "layers" on the outsides but remedied it by sandwiching a super thin bead of permatex copper gasket goo between the layers just in case. It's worked great so far.
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I ordered another one for my 74 valiant... But whoever (AMZN) packaged it screwed me... A replacement is on the way.
(See ridiculous shipping)
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Like @1963dartgt said... I can definitely understand it being a one use gasket.

Good luck!