What Header Gasket?

[Cadillac Kid]

Thank you for all of the great response everyone.

I picked up felpro-1444 manifold gaskets today, and Installed the headers on the motor. They matched the heads perfect and the header ports pretty well.
I got them snug and will re torque them after a few heat cycles. I'm going to pick up the soft aluminum collector gaskets as well. I know the collector can be a problem area.

Thanks

-Gavin