I thought this drawing was better. while the dashed lines for continuation are not include from tube to radiator, but assuming tubes are shown at true elevation.
notice the vent tubing 37 from top tube goes to top of radiator. (to midigate the fact the outlet is near center to allow top of radiator to fill.
another thing to remeber, the original radiator had a vertical seperator in the end tank for front / back flow path. the ford recomedation was change sperator to horizonal giving the bottom / top path. expaning why thermal switches for fan are also FUed
and my "engineering" background is that the pump pushes throug engine / radiator back to its "suction" inlet