I'm in the process of moving the battery to the trunk on my 69 Dart and pulled the wire today. The cable goes from the starter through the firewall just below and to the outside of the master cylinder and goes along the sill on the drivers side to the trunk, then across the differential hump to the solenoid mounted behind the passengers wheel well. I bought 25' of 1/0 welding cable and will guess there is about 7' extra. I still have to make the cable from the battery to the solenoid and ground wire. There will probably only be 4' left over.