I beg to differ here

electric guages just show its working some and IMO are not a reliable as a mech guage

I had the same thing till I went back to the mech autometer gauge

i say put a mech on and check it first before working on something thats not broke

my sb 318 holds 25 hot idle in gear at 850rpms 75 at 2500rpms almost 250,000 miles on it

my BB used engine 75,000 miles was low pessure on elect gauge and flickerd the stock oil light in the dash

swaped to the mech gauge

now its up around 70 hot and 30 at hot idle

sender was going bad maybe,it would be at 30lbs on mech gauge and flicking the oil light on the elect gauge compairing the 2 at the same time

cant believe all you have in that 440 and its on the loose side

did you do any oil mods? full groove bearings?

did you get your seal fixed?

how was the lifter bores?? in spec on the bore size?

IMO,I would double check with mech gauge first move to see if the gauge is correct

result will vary by gauge,IMHO