273 Commando ignition wire question

Sorry I did pull that pic from the internet so it may not be a '67. Mine is a 67 BUT it does also have the round plastic pieces not the ones MVH posted. Those would be perfect I think.
You need to show us your valve covers so we can see if they are 67's or not. Take a couple pics of the passenger side cover and the oil fill/pcv pipes on both.