High Quality Content by WIKIPEDIA articles! 1966 in NASCAR evolved into the first of three NASCAR Grand National championships for David Pearson, whose 15 wins through the season was second only to Tim Flock`s 18 victories in 1955 at that time. NASCAR allowed the return of the Chrysler Hemi engine in 1966, and at the same time Ford decided to boycott NASCAR for the season. Pearson captured the championship with 35,638 points over second place James Hylton who finished the season with no wins, but 33,638 points for his consistency and efforts.