OK! Heads have been checked by the machine shop and they are in good shape. They have 70K original miles on them but the car sat for 20 years. I am going to have the valves replaced with steel replacements. New bronze guides installed. New springs, retainers and locks. Heads surfaced only as needed and gasket matched. Hardened valve seats installed.

Am I missing anything? Is there something else I should do for a stock rebuild of the heads? Are Fel-Pro's valve stem seals any good? What about the valve cover gasket surface modification?

Thanks everyone for your help!