Edelbrock uses an MSD dizzy w/ optical pickup with their proflow efi system. Coills can be of your choosing (I'm running a Mallory but once it pukes out I'll probably switch out to an MSD blaster). I don't think the dizzy matters either (especially in a bronco that won't see much over 5000 rpm), but it has to have an optical pickup and you have to know how to set it for a base reference (10 deg or something), no vacuum advance (comp. does that). I also have and MSD 6 ign box but you don't have to have it, it'll run either way.
I can get you the MSD part number from the dizzy this pm if you want it.