Oil Filter Leaking at First Prime of Oil Pump

Different plates for diff expectations.
Low rpm 318, 4 small holes.
Higher rpm 340, more holes
Racing, more holes yet added.

View attachment 1715511788
I've never used anything but a 90 degree filter mount, with the exception of a 318 back up motor...and it leaked and got me pulled over a block from home.

Those plates are bad luck.