Could use the copper spray gasket stuff on the hot manifold gaskets. I usually don't use anything.

Don't usually use anything on carburetor gaskets either, including the base to manifold gasket, unless there is a problem, then I'd lightly use Permatex #2.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-