installing painless wiring kit in 68 valiant 383

thanks to everyone for you reply, most of the kit i understand, its just the wires coming out of steering column and i need to hook up fuel level in instrument panel , i got the 12 circuit pro kit 50002 and made my own switch panel, this kit is amazing tho it comes with almost everything i need to finally give life to my mopar, only thing is it comes with GM plugs and connectors