Seriously, if you're running relays and direct power lines, are you usually making some effort to conceal this for a resto look, or is it all out in the open? Would like to see an engine bay with these mods done.
My kits that go under the battery tray hide very easily with the factory harness. It does not stick out like a sore thumb because the wire covering I use isn't the GM style covering the cheap kits on Ebay use.
If desired, my kit could easily be wrapped with stock style cloth/fabric tape. A couple of customers have done this and the wires are easier to wrap because they are not singularly loose wires. Lots of ways to skin a cat.