Ok so now the next question.
With a header.... Use a traditional header gasket? Or use a nice new OEM stamped steel manifold gasket.
I know from experience with Fords that a header gasket is a HUGE no no when using OEM manifolds. It will cause manifold damage, and broken studs. This is due to the "header gasket" blocking heat transfer between the manifold and head.
I also might be overthinking this
