If Sanair ran to 1000 feet it would have 3454 feet of deceleration distance to the beginning of the sand trap. That is compared to Englishtown's 2558 feet in the same configuration. So it seems that shutdown length at Sanair wasn't quite the same issue as Englishtown. In any case, Muldowney's crash was contributed to a front tire tube coming out and fouling the steering, if I recall correctly.
Sanair Super Speedway
Old Bridge Township Raceway Park