If your talking about something like what the boosted third gen hemis and LS use in the bottom end, I think it would probably have to come from the back of the block through steel hard line across the bottom and outside perimeter of a windage tray and tee off under each cylinder. Those squirt tubes that go in a DXC hemi block are only about a 3/32 of an inch and pinch down to a point on the end. It definitely would take some pre planning but if you used brass junction blocks and 1/8 inch or smaller line to make a line/jet out of... just throwing an idea out there, FWIW, probably not a whole lot of help. But I don’t see being able to tap the oil galleys under each cylinder like in the newer engines with the banjo fitting and hollow bolt either, as in this example...
