My math is fine. I wasn't talking about using a closed chamber head. I think the OP asked what Chrysler said about how far they should out of the deck.
I think (I can verify when I put my turd back together) with a .039 gasket and being .054 out of the hole I have .040 quench which means the chamber relief is about .055, which when I typed it seems less than what it is. Maybe I'm .060 out of the hole.
But the math is something close to that so the head will go on.