Rivalries are what make racing riveting. Mopar vs. Ford, North Carolina vs. South Carolina, Puralator vs. STP … and today, Richard Petty versus David Perason. Why did they wind up in head to head battles almost every week? How did their rivalry push NASCAR to the limits and save the sport from suffering the same fate as the auto industry during the 70s? All that and more on today’s Past Gas! More about Show: Follow James on IG and Twitter @jamespumphrey.   Follow Nolan on IG and Twitter @nolanjsykes.   Follow Joe on IG and Twitter @joegweber. Follow Donut @donutmedia, and subscribe to our Youtube and Facebook channels!   Don’t forget to subscribe to the podcast for free wherever you're listening or using this link: http://bit.ly/PastGas. If you like the show, telling a friend about it would be helpful! You can text, email, Tweet, or send this link to a friend: http://bit.ly/PastGas. Thanks to our sponsors: Create the perfect workflow for your team with monday.com Work OS. To start your free 14-day trial go to monday.com. Head over to autotempest.com/pastgas. With the Peloton Bike, there’s nothing like working out from home. Learn more at onepeloton.com. New members can try Peloton classes free for 30 days at onepeloton.com/app. Terms apply Find out how Upstart can lower your monthly payments today when you go to upstart.com/GAS. Learn more about your ad choices. Visit megaphone.fm/adchoices