I am building an 87 octane 455. The block will be zero decked and otherwise built mild. Maybe spring for some cheap H beams and I will include forged pistins and moly rings. Of course, everything else will be rebuilt as well.

Anyway, a buddy suggested some 6X heads milled to the cc I need for the compression I want to run. Question is, what heads exactly? I have a '75 intake, but I want to go with a unit that is a little better flowing. Am I going to have gasket matching issues?

Thanks for enduring all the questions!!

Dave