Riverside: Pete Revson, Robbins-Jefferies Racing Team, Lola T163 Chevrolet, leads Chuck Parsons, Carl A. Haas Racing Team, Lola T163B Chevrolet.
Pete Revson, Robbins-Jefferies Racing Team, Lola T163 Chevrolet, leads Chuck Parsons, Carl A. Haas Racing Team, Lola T163B Chevrolet.