The GM Performance Parts video on the LS7 is particular interesting where it shows an engine revving up at WOT on the dyno. This is NOT a chassis dyno test like we so often see outside of GM's control, and have to wonder what is the actual power produced at the flywheel to SAE (net) standards. This video show the REAL DEAL; an "engine" dyno test, fully instrumented to SAE test standard. I stepped through the video frame by frame during the dyno test segment and was able to capture the HP and TQ peaks. I was pleasantly surprised that "some" LS7s are underrated in power output.
