oh my. A supercharger back in a Detroit, though not quite like the old 53/71/92 days. Or is it?
2400 rpm redline, sounds like a "normal" truck. Why so low?
I guess with 4000+lb ft of torque, they probably didn't need more.
I found the reference to being unable to measure due to no current dyno being able to handle it interesting.
I would have thought dynos were used for other larger testing also, though maybe not a drive up style.