Project Odin Electrical Overhaul (1973 Javelin)

So I recently purchased a 1973 Javelin with a 360 (two barrel carburetor) and A727 transmission. I learned that the majority of the wiring is shot and attempting to use anything electrical inside the car is a no-go...unless I like a campfire car. I'm used to working on vehicles between the years of 1989 and 2015, so this is my first run at a classic.

Edited by JeeperJolene - Feb/21/2018 at 7:50pm

Some have used pre-made harnesses for the setup you plan on. Pain-less for example.

I would obtain a 73 or a 74 TSM, as they are easily obtainable in manual or PDF form. It will help on how the wires are done to the car.

The earlier 70s AMC car's wiring are simple, so unless you really need to use bunch of relays, which can make a rats nest of extra wires... i would do the head light relay upgrade and properly fuse the alternator in case of sort out.

Heck, I am modding my 71 with a police type alternator, which produces 3x the current at idle of most factory pre 90s alternators on domestics. I don't see any major change outside of blower fan motor relay for high speed, instead of the resistor being in line. So with both issues as stated just two relays and a good factory wired setup, with a minor mod for alternator hookup.

Billd is our electrical system master with most all AMC years, and recently obtained a 73 Javelin, which he can relate and explain further on strenthening the electrical weaknesses.

Yup, that's why I figure I can knock this job out myself and reduce/consolidate/cleanup to reduce higher amps traveling into the cabin as much as possible.

That's nice and neat! My Javelin looks like this right now:

Why not run a properly wired alternator instead of the so-called "one wire" things?
I'd run a decent GM alternator and wire it correctly with all three wires.
Output (as always)
Sense (and run it to the load area)
Field excitation (typically the dash ALT light with a parallel diode or resistor in case the bulb fails)

A little research here will find dozens of posts outlining why the so-called "one wire" or "single wire" alternators aren't the best solution, but are basically a shortcut for those who don't get into details. 
If you are making "upgrades", the "one wire" sure isn't that........ they are meant for rodders who hate wires and don't care. More of a "bragging rights" "I got rid of some wires" thing. Marketing gimmick meant for street rods, etc.
I have posted links to other sites explaining why to do it right and not use those things.