Petty led the final laps before Pearson rocketed by on the inside of the last lap .
The finish remains in NASCAR lore with David Pearson and Richard Petty battling for the lead all race , which featured 36 lead changes .
Richard Petty led the final laps before David Pearson rocketed by on the inside of the last lap .
The finish remains in NASCAR lore with David Pearson and Richard Petty battling for the lead all race , which featured 36 lead changes .