Horsepower adjustments following the Division 7 event in Tucson, AZ

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10/19/2021

As the result of runs under the Automatic Horsepower Factoring System (AHFS) 1.20-second under policy at the NHRA Divisional event, the following change has been made.

The horsepower rating for 1977 Ford Mustang, entries with the 302 cubic inch engine and a factory rating of 122/137 currently rated at 141, has been increased by five horsepower, to 146 horsepower: for Stock Eliminator.

NHRA's 2021 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. 19, 2021.

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