My block feed line looks like this and the open 3/16 compression fitting goes up to the return (bottom) of the oil filter.
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80846FB4-5951-489B-8DFA-99D008770F21.jpeg (299.49 KB, 192 downloads)

Larry
Old man᠁Old truck᠁neither one goes very fast. All you need in life is TIME, PATIENCE and MONEY.
If you are missing one component, you'll need an abundance of the others two.