Seeking advice/feedback if I have the right side up as in the first pic using a Best Gasket 507. Second pic is what I think should go on the block face.
Best gasket's gotta a contact us webpage. Why not ask them directly? They make the gasket. They should know. Or at least give you some kind of a best guess. Doncha think? 8^) https://bestgasket.com/contact-us/