
The Bruce (4) and Denny (5) Show leads the field of assorted challengers around on the pace lap at Road America. They’re followed by the Lola T163s of Peter Revson (31) and Chuck Parsons (10), Chris Amon’s Ferrari 612P (16) George Eaton’s customer McLaren M12 (98), Jo Siffert’s Porsche 917PA, George Follmer in the Ford G7A, and John Surtees in the Chaparral 2H (7).
Photo: Pete Lyons / www.petelyons.com









