Hi Tony
Thanks for the Ebay link!
The electric gauge will remain in place on the dashboard. Seems to be original.
I will add a mechanical oil gauge to control the pressure.
The point is what are the proper pressures in ford V8 engines. This engine is SN 5G#####F
Now the engine have 80 PSI cold , and once warm it drops to 65 PSI with the mechanical oil gauge.
Here is winter. I don't know how the pressure will be in summer ...