Judging by the witness marks on the lifter body, it appears that the lifter is way up in the bore at full lift.
Any feed holes in the oil band going to the axles?

Did you happen to notice if the oil feed hole above the axle is exposed when the lifter is on the base circle?

Since those lifters have an actual oil band, the pressurized oil supply is quite a bit closer to that axle feed hole.

Looks like that part number puts the pushrod oiling holes where they should be for a Mopar...... Parallel to the axle.