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Allison, this is just off of the top of my head (although very true) and
not helpful for what you're looking for but ISCA stands for International
Sports Car Association, take it from a sports car nut who has owned an
MGB, Triumph Spitfire, Datsun 1600, and the like (and still want an Austin
Healey 3000 some day)! Hope somebody out there can supply you with what
you really need.
 
Paige Andrew
UGA Libraries