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I have burning smoke coming from my exhaust manifold and don't know why on 1990 Buick Century

I recently noticed I have a burning smoke coming from what appears to be my exhaust manifold where the front pipe connects to the manifold with the 2 stud bolts. Does anyone know what might be causing this issue?

Asked by for the 1990 Buick Century
USUALLY THAT IS A VALVE COVER OR COOLANT LEAK CAUSING THIS.MOST LIKELY A VALVE COVER GASKET
Is that the same thing as the exhaust manifold gasket? The gasket that is round like a doughnut?
YES SEEK A REPLACEMENT FROM A MUFFLER SHOP
Ok thanks I already have a gasket for it laying around but I've never replaced a gasket like that before, What can I use to remove the old gasket from the manifold? It's really hard to reach in there.
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