For 6 cyl owners, use your own distributor so it looks correct in your vehicle. The cost of doing it yourself is pretty cheap.
http://devestechnet.com/Home/HEIgnitionIts not easy, but works flawlessly. Here is a link to a friend of mine who used the old voltage regulator to hide the module:
http://talk.classicparts.com/threads/deves-hei-kit-with-help-from-bilbo.22233/Hardest part is machining a round reluctor to go on a Hexagon distributor shaft, then making a mounting wafer for the pickup. I used rudimentary tools to do my first one. Fun project when its cold outside if you have a warm place to work.
There is less mystery about this than people think. They have 6 cylinder and 8 cylinder modules and reluctor systems that you can modify yourself if you are up for a challenge.
