Mark,
Depends upon the gasket. Any of the "slick" feeling gaskets, the graphite type & the print-o-seal type are good as is, no other sealant needed.
You need to run a turkey tray "if" you're using the manifold's exhaust heated cross-over. I doubt this applies to you Mark, but others are reading this as well. The turkey tray prevents oil from hitting the hot crossover, turning to ash & polluting your oil.
George
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