Hello I'm looking for a wiring diagram for 68 p/u, I've installed a 454 and 700r4,truck had no wiring what so ever when found, gathered up several harnesses, from that era and newer,and adding additional circuits, need info on colors and location of circuits through firewall connector,have some with 4 wires and some with 6, can mostly figure out where they go from connectors,gage of wire, and color,but diagram would be helpful. Note I do have a 75 truck service manual, that I might have to use, thanks for any help in advance
