Horsepower adjustments following the NHRA Amalie Motor Oil NHRA Nationals in Gainesville, FL

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3/16/2021

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 90-92 GM, entries with the 350 cubic inch engine and a factory rating of 240-245 currently rated at 283, has been increased by ten horsepower, to 293 horsepower; for Super Stock Eliminator GT/FWD.

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 Mar. 16, 2021.

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