Quoting turbowop:
Too bad for Mike it only rains bling, and not horsepower.
Well, I'd say 424awhp @ 22psi on pump is a respectable number. Certainly not tapping out the potential of the setup, but decent power, especially at such a low boost level. It would seem the legitimacy of those numbers are now in question, though.
Mike's biggest problem is his reliance on others. When most of your build is done by someone else, there's always the potential for a lot to be left up to chance. When you understand the processes and machanics behind the modifications, it's a lot easier to make choices that make sense. I'm not saying Mike doesn't know anything, just that there's a knowledge gap left when you aren't the one turning the wrenches on your sh*t.
Who Mike listens to and trusts to build with his interests in mind is his business. In the end, he's the one who is going to suffer any negative repercussions. I think there's 40+ pages here of pretty sound advice, so it's up to him whether or not he takes any of what we say into consideration. It's a historical fact Mike will do what he wants, regardless of how many people say I told you so.