I have a high pressure 235, '53 engine (originally came with a Powerglide in my '50 with a 30# gauge. It stays pegged while the engine is cold or is going down the road. Once it is warmed up and at idle the needle holds halfway between the 15 and the 30# marks.
I am good with that. I don't care what the actual maximum oil pressure happens to be. All I care about is what the minimum oil pressure is.

1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission