Two months ago, when installing a stroker, I had planned on splicing in new injector plugs and extending the injector wiring up to the firewall.
When pulling the plastic cover, that protects the wiring going over the top of the engine, the wires could not be separated at all, being fused together.
Surprisingly, the wires were still flexible and not prone to cracking.
Instead of screwing up what was there, it was left it alone except for splicing in the new injector plugs.
The harnesses found at the local pick-a-parts were all in similar condition.
These are things to expect when driving an elderly vehicle.
Since the coil rail was being retained, it's wires were extended about 15" to allow pulling it out of the way to access the spark plugs.
With stock wiring, the coil rail cannot be pulled out of the way, making it is very difficult to change the spark plugs or to remove the coil rail's plug.