Low Compression

Patton wrote: Before installing the new gasket, hopefully the mating surfaces (head and cover) may be restored to an as-new clean condition.

When doing so, the new gasket may be installed "dry" without any resulting leakage past the gasket.

But do use a light application of sealer on the curved and flat edges of the cam end plugs, to prevent oil seepage past the plugs.

Be sure to thoroughly clean the cam plugs before applying sealer to them.
And also clean the recess where they fit into the head.
Any oil residue on the metal parts will prevent the sealer from properly adhering.

Good Fortune!