Intake gaskets wicking coolant

Correct me if I'm wrong which I might be. They look to be only suitable for cast heads, not alloy edelbrock heads. Port sizing is different I'm pretty sure. Edelbrock head instructions recommend either their gasket or felpro 1213
I have them on promaxx ,Edelbrock performa,Edelbrock Victor & cast J 340 also a set of EQ but they were ported ,the gasket is pretty close to an exact match to the port i think large port the gasket hole is 1 5/16" x 2 1/4" i always leave for a day or 2 for the silastic to set on the China wall