Chicago Wise Guy Legend Racing's Wicked Fast Duster

Went to the WiseGuys Showdown at my local race track WIR and this wicked fast Duster was there, anyone know anything about it?? I talked to one of the team members briefly as they towed it to the staging lanes but they only thing he knew about it was it has a 496, he didnt know if it was a wedge or a hemi. They sprayed the crap out of it ran mid 7's first pass, (and yeah he beat that blown camaro) then it was all over the track second pass, and never came back out after that. maybe they broke something. Cool car anyway..