The #3 and 4 cars were entered by Mickey Thompson, they were Mystery Motor 427’s that came from Smokey Yunick. Smokey did the roll cages and chassis’ too. The car shown by the arrow was Ray Nichels entry, a Super Duty 421 Tempest that won the 250 mile American Challenge Cup Race with Paul Goldsmith driving. Bill Krause was in the 3 car and Rex White drove the 4 car.