Idk, Jeff. You certainly know more about it than I do, but I think you'd get just as much benefit from one of those stinky pine tree air fresheners!!
Most of those benefiting from a catch can are the 4.7s & 5.7s. The positive Crankcase Ventilation (that stands for PCV
) and the oil control system in the Hemi is junk (at least from *my* catch-can research).