Before the Kurgan tune it went 10.4 on a 1.48 60 ft. The suspension is fully adjustable so I feel the 60ft has a lot left in it. That plus the extra HP should put it deep 10s.
I have never had it on the dyno. I've tested from 7-25psi on my car. At 19psi it ran 9.77@142mph. I am certain it makes north of 700hp.
My combo is a full auto valvebody controlled by a 2004 Mustang GT PCM. Third gear is only held by the direct clutches, not direct and reverse clutches like the Lentech and Freddy Brown valvebodys. The manual valvebody is a stronger choice for the 4R with that in mind. The full auto stuff needs to have precise EPC in order to live at higher power levels, in part.