I was finally able to get the car on a chassis dyno. We ended up making 10 pulls and I wasn't too impressed with the numbers I ended up with. 449.93 rwhp and 592.83 ftlbs of torque @7500 rpm. A far cry from what I had expected. It has something going on from about 5500 to 6200 where it feels like I'm pulling a 10,000 lb trailer. After it gets past that point, it runs right up to 7500. We took out some timing and it got a little better, but the lag is still there. They guy did a MPH comparison and I was doing 151 mph on this pull. Here's a link to the video clip. You must right click on the link, and choose "save target as" in order to download it and watch it.
http://1960belair.8m.com/Videos/dyno-three.AVI