I did loom it laying on the fender. Coiled it up, ziptied it & tucked it out of the way.
The original, being routed behind the engine had part of its insulation melted from the exhaust. So the lug on the terminal block must go to the ignition, eh. Been having intermittent starting issues, so far so good. Think the oem battery cables were corroded inside, have not yet cut em open to verify though.
Cut the battery cable plastic ends open with side cutters and cut the rest of it back with a sharp knife.
They are bad.
They are always bad.
Cut the insulation back untill you see the color difference in the wire.
And it bends differently too.
Check out the crusty green fuzz and the wrecked discolored weak copper wire.
The plastic shrouded GM side post battery connection is the most decieving piece of crap for anybody new to diagnose.
It is the first thing that most people look at and it will pass the visual test becuase it looks like its brand new.
On any side post GM product ever made if you have any type of electrical problem including, slow start no start slow crank etc...
Its the friggen battery cables or the battery contacts.
The plastic coated ends of the battery cables are designed to have a certain amount of "Crush" that is supposed to make a watertight seal.
That never worked even with a brand new gm battery
If you take a look at that contact inside of your stock GM sidepost cable you will see the remants of four little "lugs"
The idea was that those little lugs would dig into the lead of the battery post and keep it from spinning under vibration loads.
All while that absolutely insane and idiotic plastic collar would somehow maintain contact.
That is an intollerant unadaptive design failure.
So the battery cables work great unless they have interrmittant contact due to rotation at the lugs which will cause an intermittant and corrosion and also great as long as the aftermarket battery standoff is within +or- .020.
The factory battery cables are defective and dangerous and it should have been a huge recall from vehicles stalling on the freeway.
If you have a chevy with the factory sidepost cables dont even waste your time chasing electrical gremlins untill youve replaced the battery cables.
They are bad.
Cut them open and be ready to be shocked.