Pro-Dyno
11-22-2011, 04:39 PM
Joshua Kollman's 2008 Shelby GT500 has a 10# lower pully and a 2.6 upper pully. With this combo, his Shelby put down 572hp and 566tq!
http://www.pro-dyno.net/gallery/albums/album368/DSC03140.jpg
http://www.pro-dyno.net/gallery/albums/album368/572hp_566tq.jpg
http://www.pro-dyno.net/gallery/albums/album368/DSC03140.jpg
http://www.pro-dyno.net/gallery/albums/album368/572hp_566tq.jpg