Quote Originally Posted by EagleMark View Post
Find a drop in Duraspark distributor and use those wires to hook up to an external mounted EST module.

1534duraspark_with_tfi_and_8_pin_hei_module_revised.jpg
This is what I did. My 79 Jeep cherokee with a AMC V8 came from the factory with a motocraft distributor/ignition. I simply locked out the mechanical advance, unhooked the vac advance and uses a 8 pin hei module mounted to a heat sink just like the diagram mark posted.
I'm thinking this would be the quickest, cheapest, and easyist way to do this.