ALERT!! SOUND THE ALARM!!..

Thicker intake gasket options are out there. If not just glue two together. Double stack. Just like a burger.
I have a set of 1213s..
I'm sure they milled at least .010 offf my head's a long time ago to clean them up.
That plus the 1008 felpro @ .039 should leave me at a .026 difference...