Nope you know how this goes! Be prepared to get flamed for all of eternity if you're wrong because we the people of the INTERNET have that DIVINE RIGHT!
My 5.3L 9.3/1 mod mill makes 800whp on 10psi. I do have aggressive heads and cams, but a soft midrange intake, and smallish 62’s.
I can’t for the life of me see how a 10psi 10/1+ 5.2L coyote with head work and dedicated blower grinds won’t also make 800whp.
I think ford would only need about 7-8psi to make 725 crank hp. The fact Ford is saying 10-12psi and that blower basically solidifies 800hp in my mind.
Hell, a 2011-14 5.0 with a 2.65 tvs and bolt one will belch out 700whp with 7-8psi.
If anything, I might be shooting it too low. I’ve seen blower build 5.0’s with head and cam work that out 800whp out at a silly 6-7psi with big centrifugals and 12/1 compression on e85.
The throttle body inlet is the only thing that makes me scratch my head on this new mill. It’s very small for the job at hand, that will be an easy place to pick up power.