[TomC750]

Originally Posted by ford38v8

A cleaning of the cooling system is always a good idea, but as you haven't reported boil -over or losing coolant, I see no imperative that it must be done just now. When you do it, though, be sure to flush it out in the prescribed timeframe, as the caustic does continue to work on the internals.
Your oil pressure is normal, any reading at all at idle shows nothing to be concerned about.
Electric fans are not usually a good choice for a flathead, for several reasons. High or low placement not near as important as some would tell you. What you can do here with really good results is to make sure your radiator's air dams are in position, and to ensure that the fan's position is close to the radiator.
You said the radiator appears to be in a fairly new condition, but a close examination may show otherwise. The tubes must of course be clear for water flow, and the fins open, not bent for air flow, but also, and this is often overlooked, the fins must be solidly connected (soldered) to the tubes for heat transfer. Heat transfewr can also be impaired if there is too much paint on the radiator. A very light application of rattlecan flat black is all you want.
Again, no boil-over, a temp gauge reading not pegged out, and an oil pressure reading that actually moves the needle, enjoy your Ford and don't worry about it.

Thanks for your reassuring perspective. Appreciate it. Yes, although the radiator looks brand new, I will do the flush.