Class B: pre 1974 .......Class A: 1974 - 1981

Points : 10,8,7,6,5,4,3,2,1,1 for first 10 in each class. Plus 1 for fastest lap, plus 1 for pole, plus 1 for every qualifier.

For 3 starters per class : 6,5,4, 2 starters : 4,3, 1 starter : 1