In stock form. I believe they are exaggerating. here's a picture I posted of the standard Dynamic port next to a Huma full flow port and the difference is big.
Anyways, I believe their numbers are based on using all of their potential parts and not the stock ones. Even in my Dynamic I am limited to setting the reg to about 160b unless I want to put in a heavier spring or hammer. They make them, but I don't want to use them. As it stands I do have my gun doing what they claim it can do, but I only got there with aftermarket parts and right up there settings.
I got your numbers wrong when I calculated your power, with the 33s you were getting 62.7fpe. Regardless, way less than 79. I wonder if they don't maximize everything in the system before calculating their numbers? It seems to me they do. Though, like I said, I doubt their numbers are achievable in stock form.