The dyno-sheet I got from Mike with the car, dated 1/1/10 shows:
rwhp: 401.3
rwt: 365.4
He told me these numbers were with one bad injector and it was never back on the dyno after he replaced all of them.
I have no idea of the mods on the car, rumored to have gone to LPE once and then to VetteDoctors at some time later in it's life. Looks like it's had a little top end polishing and he mentioned a bigger throttle body. It has 4:10's in the rear and a shorty shifter.
I do know that it has a habit of eating rear tires and large amounts of Premium...