Yeah, and back then a driver could really make a big difference in win/loss records. Cars were so much simpler without computers and electronic controls, but drivers really had to know their cars, and how to make them go fast and straight!
That's what I like about the small time races today. Drivers have more to do, and most work on their own cars between rounds along with the crew. A driver who works on his own car has a real advantage over a paid gun who sits in the air conditioned trailer between rounds.