John M.
I too use to live in Kommiefornia.Back in 1971 they passed a law that cars back to 1955 had to be smogged.You had to install a vaccum advance delay device(no vaccum advance until the engine reached 205 degrees) and and closed crankcase with a pcv valve.I was working in a wrecking yard at that time and seen alot of older cars with overheated engines and blownup engines from oil leaks from people not maintaining their pcv systems.Back then you went to a gas station for your smog checks.We had a friend that did our smog checks over the phone if yu know what I mean.My 56 Chevy that I had at the time had a 1954 Chevy 1-1/2 ton 261 engine in it(WINK WINK)so I did not have to get yearly smog checks.At that time they went by the engine in the car and not the car itself.I moved out of Kommiefornia in 1981 because of my other hobby (firearms) Back in the 1950s and early 1960s it was a good place to live.I still have fiends and family there,but I live in Washington State now.
EvilDr235
