i wont believe it until someone tears down the engine to say its stock
with the hard parts of the 6.0psd, head design and the restriction of the stock turbo, i say its physically impossible....
and with the friction material of the stock clutches in the tranny/torque converter, do you know how much pressure it would take to hold 700rwhp? probably more than the pump can make....
just like what my dad used to tell me: believe none of what you hear, and half of what you see!
Well, since there was another 6.0 throw down 744HP on a stock turbo at the same event First on Race Day threw down the 790 I'd say it's more believable than you think!