The result of having so many entries for NART was that they were woefully understaffed in the pits when it came to mechanics and crew and at times, during the race, Swede Savage and Peter Revson had to change their own tires, gas their car and even do mechanical work on the car. On the grid prior to the race Revson was seen adjusting the rear-view mirror on his car with a borrowed screw driver because his team didn’t have enough tools on hand for him to use. This did not go unnoticed with the motoring press and later stories were critical of NART for failing to be adequately staffed for the race.
Another Ferrari 512M was entered by the Young American Racing Team with drivers Masten Gregory and Gregg Young at the wheel. While the car looked like a 512M it was powered by a 512S engine. One motorsports wag wrote that the Young American team was bankrolled by Young’s wealthy mother. For Young it was only his second year in big-time endurance racing.
The only factory entered Ferrari in the race was a 3-liter 312P in Group 6 and driven by Mario Andretti and Jacky Ickx. Also in the same group with the Ferrari were three identical 3-liter factory Alfa Romeo T33/3’s with drivers Nanni Galli, Rolf Stommelen, Nino Vaccarella, Tone Hezemans, Andrea de Adamich and Henri Pescarolo.