The starter and solinoid wiring had to be re-routed up and behind the kickdown lever away from the tube which made them now too short to reach the battery....so new wire runs as well.
Not necessary - run the wires between # 5 & 7 tibes and the length is just fine.
as for installation - we are talking "headers" here and not "battery" so a bit of work and fiddling is in order.