318 diagnosis

RustyRatRod said
Yeah you used the wrong intake gaskets.

Help me understand. These were Felpro 1213's on

sireland67 said
Fel-Pro 1243 is the correct gasket.

These are 675 casting heads which are 68 -74. Are these 2 barrel heads that need 1243 gasket and 1213 is for 4bbl heads?