electro polishing and jet-hot coating

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    I’m restoring (restomoding) a 73 MGB. Recently read an article that mentioned electro polishing the stock exhaust manifold to get better air flow–also talked about jet-hot coating for heat reduction. It was confusing because both cover the inside and out. Is it an “either -or ” thing or do you electro polish and then put the jet-hot over top of that?

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