In the April 2008 Hemming's Muscle Machine but they don't put much on the internet until a month or two after the print issue has been out, for older stuff you have to register, or subscribe or other nonsense. I have a subscription to the hardcopy version, and still would have to jump through hoops to view the issue online... nonsense.
http://www.hemmings.com/mus/stories/ for their archives 2004-08
http://www.mustangandfords.com/featuredvehicles/19803_71_mercury_cyclone_spoiler_convertible/index.html for these photos, an article, and a lot more great Fords.