The editor of Classic Chevy runs this truck in SCCA in Southern California,

because the truck is used for the magazine articles and "how to's" some things get done and some have to wait for another time, like the wheel well covers

if it looks familiar, it was at the Tustin event in February, the American Street Car Challenge  http://justacarguy.blogspot.com/2013/02/sports-car-racing-not-just-for-sports.html