[William Miller]

Charlie, do you know the switch point fot the idiot light?
Might also consider the cam oil restrictors.
This is a simple swop (especially with engine out).
Best is that it raises oil pressure to the lower end while at idle.
Waynes' engine book and maybe thier site has a good explanation for the upgrade.
Can't imagine a mechanical gauge would cost much. Just wonder what threads are on the sender and if they would match up with a cheap mechanicle unit that you could get at a discount store like autozone etc.