I know this car and the guy that built it. I believe the Blackhawk story and heard from Casba that it held a GT2 lap record on that track at one point in time. I would expect it to be a great car.
Also FYI.... This is the exact body (not the same tube chassis) as the one on the cover of Pontiac High Performance. John Callies has verified this.
It is really too bad that the documentation is not with the car. It would be much more valuable.
My IMSA Build: http://www.cardomain.com/ride/789315
HHP Adjustable Sway Bars: //www.fiero.nl/forum/Forum4/HTML/036556.html