If this motor is "as produced" at the factory, you should be aware that it was designed to operate on moderate/high octane leaded gasoline. Static compression ratio may be too high for the motor to operate on today's available pump gas (motor could detonate) and the lack of tetraethyl lead in the fuel could cause valve recession into the head's unhardened exhaust valve seats.
If I were doing this, I'd do some research into lower compression pistons (maybe dished/D-cup pistons with stock compression height) to bring SCR down to 8.5-9.0 and hard valve seat inserts.
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