73 Dodge dart wiring

That connector was added to the engine bay in early 70s for nothing more than ease of production/assembly. I would just delete it. A blue wire, green wire, red wire, and a purple wire can be taken from most anywhere including a parts yard.
In fact you could buy crimp type butt connectors that shrink and weather seal with heat and not even need wire. Except for the red BATT wire. It's undersized.