I can't believe the stock 1/4 numbers for this car. Ford must be under rating the hp on it. There is a guy on viper board that has one and ran a 12.31 1/4! On the LS1 board they are all up in arms over it(thread already 8+ pages long, started on 6/14). Heck, the guy that owns it has about $200K in cars...2 vipers, 2 03' cobras. His timeslip is listed on both threads.
Here the links.