Grand Prix de Spa (1000 km of Spa-Francorchamps), 1970.The Porsche 917 K of Pedro Rodriquez and Leo Kinnunen leading the Chevron B8 of Angus Clydesdale and John Markey. Neither one finished the race.Grand Prix De #Spa 1000 Km #Porsche 917K 1970 Tagged on: Porsche"