Page 18 Musclecar Enthusiast, Feb 2009, talked about it, here's the link to the original story of a factory lightweight that was unidentified by the seller. That didn't last long, the seller learned pretty quick the car was one of 6 Super Duty Drag car that posted an 11.93 in the 1/4 in 1963.
http://bringatrailer.com/2008/11/07/long-lost-racer-1963-pontiac-lemans-super-duty/#more-1318