I see that and I'm aware of corrected power. But my point isn't the corrected power. It's elevation and how you need to compensate for it. It's also that he built an engine with ported aluminum heads with a cam that doesn't take advantage of them. Uses a cam with a bad lift to duration and bad intake valve closing angle. And how all that gave it a low DCR and frankly, mediocre power. It's really just a recipe for an "Ok" engine.
Honestly if I had an engine with aluminum heads that flowed 260cfm, I would be pissed if it made under 400 horse. I just hate the idea of leaving 100 horse on the table because of mismatched engine.