1983 Plymouth Scamp GT - Lacking in Performance

So hopefully the picture uploaded of what i'm working with. It looks like if i just crack open the plastic housing on the left and un-bundle the 4 oxygen sensor wires, rehouse the other wires and separately house the Ox wires we will be good. and they can just run alongside each other, though housed separately.

Exactly!
ThAt looks like the connector but I remember it up front near the fan - after 30'years I just don't remember that detail.
Just release the oxygen sensor wires & put them in their own separate connector. And you should always add a generous amount of dielectric grease.