I would like to have one of those Infrared thermal readers, and point it at top of engine or even hood in the sun!
I dont think this summer you would need any covers for cooking at all !
Anyways I took Mike'* advise and went to stranded copper 4 ga wire- Pico No 6240-5 | 4 AWG 40" Red Switch to Starter Cables | Pico of Canada Ltd. has temp rating pg 221F, that should do it.

Used wire loom & Output voltage is ok now & Battery read 12.91 after sitting a while!

I am still going to keep an eye out for a 200 amp fuse that is a block type that will use terminal ends in & out etc..
Done for Now- Beer time!

mike car is going commando, TMI.

agree with the mad connection, you only see that when the connection is poor

ya Justin this connection was mad all right...

Considering this was Ancor wire it fried the last 2.5 inches and look at the shielding!
That musta been one hot / jumping spark/connection if ya know what I mean..
Tomorrow if I get a chance, I will dissect the fuse ended part and see what that looks like!
I am back with new wire to 14.3 volts at battery at above idle now with light & A/C on etc.

I used a torch/ old knife to melt & cut open the plastic end..

Looks Normal inside like the wire should have held.
My guess is that with heat it somehow loosened off and that'* where the problem began.
I knew from the beginning I did not like the idea of a single torx screw as wire holder.
Give me proper terminal ends/bolted into the fuse or nothing !

terminals like that are used all the time. the panels in your house, underground junctions, anyplace you cant get a big crimper. if you have ever seen the tool it takes to crimp 2-4g or bigger you would understand. its fine though if its kept clean and dry, the ones not in the house are covered with several layers of different types of tape.

Justin is right, I have installed a few circuit breakers in the old house I lived it, and that same style is used for the main power coming in, the ground bars, and all of the circuit breakers.

I think the pros use hydraulic assisted cripmers, not totally sure though.
I know you can get regular crimpers to handle up to 2 AWG, they are still bulky crimpers.
Eclipse CP-351B Non-Insulated terminal Crimper AWG 8-2: Tools : Walmart.com

we have the hydraulic and the new battery ones they are still big and hard to get into places.