Spitfire oil pressure?

[Martin_A._Secrest@NEB.VOA.GOV]

In the interest of discovering something about the nature of my crankshaft 
bearings, Iım about to test the oil pressure on my ı74 Spit 1500.   What should 
the pressure be at say, 2500 or 3000 RPM?   Or is that even the right speed at 
which to check the pressure?   And, if the pressure turns out to be optimal, or 
close to optimal, does this necessarily indicate that allıs well with my 
bearings?

Inquiring minds NEED to know.

Martin S.
ı74 Spitfire 1500