To the OP,
How much does you GP weigh, close to stock weight? Like everybody else, I would love to see this thing go from an outside camera, or at least from a camera not zoomed in on the gauge cluster. Also, did you have to roll your fenders to clear those 285's? I don't know, but you may end up wanting more meat. We have similar numbers (04 Cobra, you a tad more h/p and me a tad more trq), and I have trouble getting 305's to stick.
EDIT: oh and great kills, awesome car.