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Horsepower adjustments following the NHRA Lucas Oil event’s in Phoenix, AZ and Belle Rose, LA


As the result of runs under the Automatic Horsepower Factoring System (AHFS) 1.20-second under policy at the Phoenix and Belle Rose events, the following changes have been made.

The horsepower rating for 1978 Ford Fairmont, entries with the 302 cubic inch engine and a factory rating of 139 currently rated at 141, has been increased by five horsepower, to 146 horsepower; for Stock Eliminator.

The horsepower rating for 73-74 Pontiac Trans Am, entries with the 455 cubic inch engine and a factory rating of 250 currently rated at 310, has been increased by eleven horsepower, to 321 horsepower; for Super Stock Eliminator.

NHRA's 2018 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 6, 2018.