i dropped you some links on the ignition swap and a wiring diagram. ive done a few electronic swaps but it was before they had these links up...lol. i went to the salvage and stripped the harness, elec. duraspark box,dist, coil and all so everything matched and all i had to get was a ceramic resistor so i didnt burn up the coil. you can email me and ill let ya in on some rear disc tips, ive had my 71 disc for a few years now and it works great and its factory ford too...
okiedragster1@cox.net
http://www.wps.com/AMC/distributor/
http://www.mustangsteve.com/conversion.html
http://pappystoys.com/durasparkinfo.html