I've spent a lot of time researching the Holman Moody pedigree on that car & came up empty. It's still a nice car & well worth the 5K asking price. If you got it cheaper congrats. Any Holman Moody vehicle should have a metal tag with the logo & a number but maybe contacting H/M is the best way to be sure.
Either way it's a nice car & should attract a crowd anywhere you take it.