Port my current M1 single plane or install the RPM Air Gap?

Yeah, I agree. I would bet my house that Mopar Performance didn't sponsor the episode on the back of their M1 dual plane, and we already know the Edelbrock Air Gap is pretty much the gold standard for dual plane small block manifolds anyway. The only thing we really learned in that episode is how much the modified kegger + aftermarket throttle body does better than the stock kegger.

I think possible (even likely) that UTAwesome gave Engine Masters the modified kegger intake and their aftermarket throttle body in the hopes that they would get some free advertising from Engine Masters. They got the free advertising, but I don't know if their products showing an additional 10 hp and 10 lb-ft does them any favors. Then again good EFI intakes for Magnums are either super rare or super expensive (or both) so maybe the average guy with a 2nd gen Ram who is looking for a bit more would go for it.

I have a 5.9 Magnum in my Dart running the factory EFI, so I was really hoping to see them compare the EFI intakes; stock kegger, modified kegger, Mopar M1 2bbl, Mopar M1 4bbl, and the Hughes (Edelbrock) Air Gap. The Hughes EFI Air Gap is basically just the Edelbrock carb Air Gap with injector bungs included in the casting. I'm interested in understanding how the Hughes Air Gap, which was originally designed as a wet flow manifold, would stack up against the EFI M1 manifolds, which were designed as dry flow manifolds.
That would be a great test. Although I think the efi M1 was not “designed” as a dry flow manifold. Mopar took the M1 single and added bungs to it. At least I think so.