car background

[xcop]

I have been trying to do a little research on an SPF I bought. It was delivered to Legendary Motorsports in Castle Rock, Colorado in May 2008. It was then brought to the Houston area to 427 Legends, and the 1st owner took it from there. I was told that the first registered owner was Trac Stephenson, owner of Legendary Motorsports. I have not been able to find any working ph.#'s for the business, and the website is not working.
I bought the car through the Lamboghini dealer in Houston, and have seen a scan of the build sheet to verify where it was delivered, equipment, paint, ect.
I am mostly curious about the engine builder/provider for them, it was evidently powered by the dealer. It is a Shelby aluminum block, 351W, with AFR heads, Edelbrock air gap intake, Holley carb, MSD ignition, 427 ci. On the build sheet they list the HP at 525-550.
Does anyone have any info or experience with this dealer, or have any info how I might be able to find a little more infor about the car? Any and all help is appreciated.