[prschmn]

Chuck is referring to return side oil pressure. You don't have a gauge there. I've had
the experience in a 9K race engine that the factory filter was too restrictive causing high
return side pressure. On a very cold race morning it actually blew the filter off it's mount-inside the car-yuck. In the worst case it can break the oil pump drive or the mounts.
Not a concern though at lower Rpms. Just an example