I have yet to see a Fram or AC filter housing without a restrictor orfice in the standpipe. That's how the filtered oil gets to the outlet port in the bottom of the housing. I wish someone would show me a picture of one of those standpipes without the flow control hole- - - -the engine life would be measured in minutes without it, due to lack of oil pressure to the bearings. It's usually at approximately the level of the inlet port in the side of the canister so the filter can't drain fully when the engine stops.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!