The 727 was not a RWHP number. The dyno shop gave your friend a RWHP number of 690, right?
I didn't say 750 was RWHP. Originally his was making a little over 690 at the crank.
---------- Post added at 04:07 PM ---------- Previous post was at 04:01 PM ----------
Soooo... for $40k he got only 690 hp because Roush is shit ("garbage")? Dealership claims 720 hp, he got 690 hp on maybe a different dyno, maybe different fuel, maybe different weather... I'd say close enough. Glad it now makes 750 hp but for the price paid with a dealership warranty, I'd say that's a pretty cool deal.
He's also 73 yrs old so a V6 Mustang would have probably been enough for him.