Jerry can't see knock retard or injector duty cycles over the internet. He's not sure of your gas quality, not all 91, 93 or 100 octanes are exact. How much ethanol etc. Since his tunes don't blow up engines you can be sure he leaves a rather large safety margin. I now know I had a leaking intercooler when he first tuned my car which could have influenced the results.
The 22 hp was over the stock Chrysler programing.

Les