I inherited a 1967 skylark from my wife’s uncle. I remember him saying that it was a 350 one time, he was a mechanic his whole life so I always assumed that’s what it was. Doing research it appears that’s it’s probably a 340 4 barrel. Is there any way to visually determine what motor it is. It’s a convertible if that matters. Looking to get the car going for my daughter to drive in high school in about 4 years. Car has 80,000 original miles and been garaged since 1981.