Oil pressure or none

[Cecil/WV]

I have a '35 Ford 5w coupe, I bought it in Aug, 2022 after it sat for 44yrs in a climate controlled garage. I showed it in Dearborn in June. It never had an oil gauge & I installed a mechanical gauge under the dash. I shows about 10-15# cold and zero when it warms up. It runs well, except for a lot if smoke, and sounds ok. What would you do???