84 c70 ignition issues

[Magilla88]

OK I have a 1984 gmc c70 dump w a 366/ clark 5 speed -eaton 2 speed rearend

I have have been working the bugs out of this for a few months now mostly minor stuff but now last night the ignition crapped out. I take it all apart and realize that mickey mouse was there before me.

I have the 7 wire harness for the holley eg-4150 carb and they somehow combined all 7 wires to 4 posts.

My question is will any universal 7 post ignition work? Has anyone dealt with this before please chime in. I am keeping the holley carb for now so would like to have it all wired right.

Thanks
Matt