10/06/2020
As the result of runs under the Automatic Horsepower Factoring System (AHFS) 1.20-second under policy at the NHRA Division 1 event, the following changes have been made.
The index for SS/AH has been decreased by 0.15 seconds to 9.45 seconds.
NHRA's 2020 Automatic Horsepower Factoring System outlines that any run of 1.20-seconds or more under the index will receive an immediate index decrease or horsepower increase. These changes are effective Oct. 06, 2020.