What did PO do?

[CJ4ME]

I've got an 84 CJ7 , AMC 258 i6 / 4.2l I6, T-5 ....I'm trying to decipher what the PO has done to the engine/ electrical. I've read through a lot of threads but none seem to be similar. I want to eliminate the emissions and electrical components and run a basic/ minimal setup. I'm not familiar with what should be hooked up or if everything is hooked up correctly. It seems to be running fine right now, just a lot of disconnected stuff just hanging loose. Any help figuring out what bypasses/ modifications have been done would be great.
I've got the FSM and I'm an aircraft mechanic by trade, so I can handle most any task as long as I have an initial clue. I'm gonna try to post pictures if I can figure out how.

 

[CJ4ME]

Here's another shot.

 

[CJ4ME]

And another...

 

[CJ4ME]

And yet another...

 

[CJ4ME]

Another...

 

[CJ4ME]

Another shot...that red wire is just hanging there!

 

[CJ4ME]

Yet another...is this where the computer would be?

 

[mtnwhlr]

Yet another...is this where the computer would be?

Yes

 

[CJ4ME]

Ok, so it has no computer, now we're getting somewhere. Thank you !

 

[mtnwhlr]

The only vac you should need is the Pcv, brakes, and vac advance to the dissy.

 

[CJ4ME]

What should I do with the vapor canister and the fuel return line?

 

[mtnwhlr]

You should keep the fuel return line. It looked in your pic like most of the canister had been pluged.