Wiring identification preference?

cudamark said
How much fooling around with the wiring are you planning to do? Seems to me once it's wired, it's done.

Well, this is what I’m trying to clean up. A lot of sketchy splices and fires waiting to happen. And this engine is likely temporary, I’m planning on a mild build 360 in the future, so having everything labeled and safe for the next time I engine swap is kind of why I’m even thinking about this.