Hey Chuddy117,
As clean and well-kept as your car is, do you by chance have the owner's manual? The older ones explained what the "octane selector" did and why you'd change it.
Also, do you know if the owner had the valves changed to hardened valves to allow you to use unleaded gas without damaging the motor? The original owner of my '46 had it done in '85; I still have to do it on my '50.
Sounds like a nice driver!
