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**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!

11-22-2011, 04:39 PM	#1
Pro-Dyno Super Moderator Join Date: Dec 2004 Location: Fort Mill, SC Posts: 696	Joshua Kollman 08 GT500 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! __________________