Re: Parking lights "off" when headlights "on"?
In 1967, all cars worked like you describe. In 1968, the wiring was changed to have the parking lights on when the headlights were on. If you were around in 1967-68 you could tell the new cars at night because they had the parking lights on. Some guys seem to make a big deal of this, but it's perfectly normal. My 66 and 67 Novas are in the same boat.
"For those that will fight for it...FREEDOM ...has a flavor the protected shall never know."
Semper Fi! L/Cpl Edwin L. "Tim" Craft, B Co 3rd AT's, Khe Sanh Combat Base, February, 1968