I show it taking 335 or so hp to get 3500lbs to 108-109. That's generalized, but whatever. If the car was geared low, and had a good automatic, it could get to 11.80s. Closer to 11.89 than 11.80, but it can be done. A stock 4.6 GT will not run mid 13s without sticky tires a heck of a stick driver in it. I've seen 485hp at the crank go 11.17 with a manual trans, so I'd say it's possible. But, if he's in Vegas, I'd think he's using a conversion to sea level for ET. If he's racing it at Vegas, isnt that like 5000' Goody? POssible, yes..probable, no. But ask for the video..that's easy enough...