I have a 1969 Barracuda 340 engine with an electronic ignition and stock voltage regulator. The car is next to impossible to start when cold. The battery has 12.5 volts. I charge the battery to a higher voltage and engine start easier. I think I need to go to a 1970 and later electronic voltage regulator to increase my voltage. Am I on the right track? What wiring has to be changed? The later electronic voltage takes a plug and my harness has spades for the stock regulator.