[jimTN]

Here is something that might add to the confusion. If you go to the service bulletins, p422, Nov 1937, a wire diagram is shown that includes the spark plug wires. It gives 4,2,1,3 (passenger side) 8,7,5,6 (drivers side) with 1-5-4-8-6-3-7-2 firing order. In my opinion, no 1 is not the second plug on the passenger side.........