Remember,
440's 'love compression'.
If the 'Block' and 'Cylinder Head' surfaces are 'true' and show no signs of
abnormalities, the 'Steel Shim Gasket is the way to go.
The Fel-Pro 'Perma-Torque' head gasket is by far the best sealing gasket out there,
and would use if there are imperfections in the block and head surfaces.
The 'new' Cylinder Head Bolts will make a difference over the 'older' and most likely stretched units.