Bill,
Those are impressive numbers considering your 60 foot time. I would not doubt that you will get to the very low 11's or maybe high 10's with that setup. You seem to be loosing a lot of time coming off the line and maybe with a little diet in the car could get much quicker. With the rear wheel HP you have I would guess somewhere from 510 to 525 HP at the crank. By the way, that is a really cool sleeper you have there. I bet you surprise a lot of folks with that car.
Jack