1964 - that brings back some memories. Seems like that was the year performance CD ignitions started appearing in Popular Mechanics, and was also when the direction an electron traveling in a DC circuit was proven. The CD ignition actually goes back much farther. Sadly, I'm so old I still remember when race wires were solid stranded copper or stainless steel with a cheap insulator jacket. I once drove a few miles home using lamp cord after someone stole the plug wires off my new '64 Ford in a parking lot. The resistor plug wasn't around either, until after manufacturers began having to comply with EMI standards of '61. So, interference on AM radios was a big deal with an engine running anywhere nearby with those solid core wires. The graphite resistance wires back then were also real garbage. We had transistor radios in cars - but I think I remember buying my first portable transistor radio in 1964 (a leather covered Realistic AM). Where I lived then, there were no FM stations until the late '60's - and only a few FM stations then. AM ruled the airwaves. Chrysler came out with the first transistor car radio in '55. In '58, a few high end cars began getting FM radios. Elvis was still the only king on the radio then. Today, I only listen to Digital radio stations - when not playing an oldies CD. Good wiring practices were always a necessity - especially around communications equipment. One more thing. In '64, my air conditioning was still always "4-60" - four windows down at 60 mph. Now, I wouldn't think of driving without it.