I don't own a Mustang per se, but figured you might accept me here anyways as my car is Ford powered.
Specifically, I own a 1965 Shelby 427S/C Cobra replica by Superformance. My car is equipped with a Ford Racing 392 stroker, which is based on the 351 Windsor, which is mated to a 5-speed Tremec. The rear end is a Ford Traction-Lok 8.8-inch IRS from a 1999-2004 Mustang Cobra.
Here's a photo taken from the Tifosi Summer Roll-out on Preston Street, May 30 (Sun). Let me know what you think of 'er.

I bought the car last summer and am still slowly getting plugged into the hot rod scene here in Ottawa. Hope to meet some of you out there on the streets and at the cruise-ins, and may look to you for tips on where to buy parts and whatnot.

