above deck ?

I assume you have had the same shop do a valve job and resurface the heads. Ask what the head CC is or measure it yourself. CC the piston volume and calculate the Dynamic Compression ratio based on the intake closing event of the cam you plan to run. Select the head gasket thickness to match the compression ratio, and piston to valve clearance you can live. You don't build a quench motor with open chamber heads.
One other thing I would do to the chambers is smooth out the chambers to prevent detonation and even up the chamber CCs.