I just learned that Dale Jr has a podcast about Nascar stuff, and has a little over 400 episodes so far. Substantial! He's covered so mush, from up to the minute controversy like Wallace vs Larson, to history of racers, design, schedule, etc.

A good example of what I want to listen to, is one of the few Nascar stories I'm a little familiar with: Randy Lanier, who made headlines in 1986 for operating a multi-million dollar drug smuggling effort responsible for bringing over 300 tons of marijuana to the United States from Columbia, to pay for his racing program, just a couple months before he was Rookie of the Year

https://www.dirtymomedia.com/dalejrdownload/episode/258bb8ad/392-randy-lanier-speed-funded-by-weed

It's going to take some time to look through the many episodes, but I hope he's done some on Smokey Yunick and the inventive cheating that crew chief's were guilty of.