:)I'm doing a valve job on a 1998 legacy ej 25dohc.I'm using Fel-pro head gaskets which have a blue coating on one side , does the blue side contact the head or the block? Should I use Indian head shellac? If I use Indian head should I  coat both sides  of the gasket? Any and all advice will be treasured.

The gaskets only fit one way.

 

Do not put any kind of sealer on a head gasket for these engines. They should be installed totally dry.

look at the oil ports in the corners and you'll see how/why they're one directional.