I have a thunderbolt ignition module (triangle type) and distributor. Looking at the mercruiser wiring diagram it looks like I can fabricate the harness. is anything other than a coil needed? Has anyone done this? I want to update the distributor on my Donzi x18 w/ 350 chevy. It now has an HE electrinic automotive type distributor.

Thanks

Probably not going to have much choice unless you can find a used one. The standard harness that plugs into the TB IV module shows No Longer Available.