The below are the Index designations and associated ETs used by NMCA and many other organizations racing Nostalgia Super Stock
CLASS DESIGNATIONS & INDEX
AAAA/FX 8.50
AAA/FX 8.75
AA/FX 9.00
A/FX 9.25
B/FX 9.50
C/FX 9.75
A/NSS 10.00
B/NSS 10.25
C/NSS 10.50
D/NSS 10.75
E/NSS 11.00
F/NSS 11.25
G/NSS 11.50
H/NSS 11.75
I/NSS 12.00
J/NSS 12.25
K/NSS 12.50
L/NSS 12.75
M/NSS 13.00
