Parsons won 21 races, including the 1975 Daytona 500, and 20 poles. He was the first Cup competitor to qualify for a race faster than 200 mph, going 200.176 mph at the 1982 Winston 500 at Talladega (Ala.) Superspeedway.
Parsons made 526 starts from 1964 until his 1988 retirement. He ended his career with 283 top-10 finishes, led at least one lap in 192 races and finished no lower than fifth in the points from 1972 to 1980 while earning more than $4 million.
His 1973 championship season was built on endurance and consistency: He won only one of the 28 races that season while second-place finisher Cale Yarborough won four times and David Pearson won 11. But Parsons finished the most miles that year to claim the crown.