Birth of the Blue Missile

Got for it, Andrew! Brings back lots of memories.
I had a '69 340 Swinger that I cruised on Whittier Blvd. in SoCal back then. The 40-cent gas price you mentioned made me chuckle 'cause my ex-wife gave me a lot of grief back then for buying Chevron 'White Pump Supreme' for 36.9-cents per gallon. It was 2 cents more per gallon than the normal supreme grade gas.
Those 340's sure were fun. Hope the 360-powered '69 Dart I'm building now is just as much fun!