3/12/2019
As the result of runs under the Automatic Horsepower Factoring System (AHFS) 1.20-second under policy at the NHRA national event, the following changes have been made.
The horsepower rating for 1976 Ford Mustang, entries with the 302 cubic inch engine and a factory rating of 133 currently rated at 158, has been increased by nine horsepower, to 167 horsepower; for Stock Eliminator.
The horsepower rating for 2010 Ford Cobra Jet, entries with the 428 cubic inch engine and a factory rating of 375 currently rated at 422, has been increased by fourteen horsepower, to 436 horsepower; for Stock Eliminator.
NHRA's 2019 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 March 12, 2019.