[Paul Ceasrine]

1964 NHRA Class Weight Factors;
S/S..................7.00 to 7.79
AA/S...............7.80 to 8.69
A/S..................8.70 to 9.49
B/S..................9.50 to 10.59
C/S.................10.60 to 11.29
D/S.................11.30 to 11.88
E/S..................11.80 to 12.49
F/S..................12.50 to 13.99
G/S..................14.00 to 14.99
H/S..................15.00 to 15.59
I/S.....................15.60 to 16.99

* Manual and Automatic Cars in Same Class
J/S....................17.00 to 18.99
K/S...................19.00 to 21.49
L/S....................21.50 to 24.99
M/S...................25.00 to 27.99
N/S...................28.00 and above