Upgrading to High Volume oil pump, issues?

My oil pressure gauge always read and currently reads lower than I think it should. The oil pump is stock and at least 20 years old.


That makes your guage over 20 yrs old, maybe sender too,,.

Factory guages are known to be more of a guide than an accurate guage.
The idea being if you are used to seeing the needle in a particular place, when it's lower than usual,, it's time to check the oil level, OR have the oil pressure checked with a mechanical guage, to VERIFY you even have a problem..

What happens if you go to the trouble of installing a new pump,, just to find the guage reads the same,, then you find out the guage is normal,, but your "feeling" was wrong..

Personally, I'd verify it's low,, and if it was, I'd run a heavier oil.. my .02