I just got my first Z and have begun the restoration project. It starts, but needs work. Everything I've read here pretty much tells me I'd be better off just replacing everything with an electrical connection under the hood. The EFI harness definately needs replacing, since all the rubber breaks if you look at it sideways. I found a harness from a 77 280Z in surprisingly good condition rather cheap but would like to know they are compatable before I spend any money.