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I'm hoping to find some info on the duraspark swap for pre 1975 Broncos. My '77 and '76 both had duraspark and I liked it. My '74 had points and it ran well but I was always ready to make the conversion.

The other thing I was looking for was aftermarket part combos to replace the brain on the duraspark or other components of the system.

FYI, for those of you with duraspark, the 1985 HO Mustang motor is a plug-in swap which means get a 1985 motor if you are doing a HO swap and retaining the carb. Otherwise, get a later year motor and obtain an '85 distributor (you need the special distributor drive gear on this distributor). The minimal mod needed is to press on the special drive gear onto your existing distributor.

- Paul Nowak

Web Pages Featuring Ignition
  Vacuum Diagrams - National Version  Pictures
A large JPG image file that has hade a little bit of helpful additional labeling done on it.
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Vacuum Diagrams - California Version  Pictures
A large JPG file with some additional notes added. Helpful.
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Duraspark II Conversion  Pictures
Image of a Duraspark II swap wiring diagram.
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