4/24/2018

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 horsepower rating for 14-15 Chevrolet Copo, entries with the 427 cubic inch engine and a factory rating of 450 currently rated at 483, has been increased by sixteen horsepower, to 499 horsepower; for Stock Eliminator.

The horsepower rating for 1980 Dodge Mirada, entries with the 360 cubic inch engine and a factory rating of 185 currently rated at 270, has been increased by nine horsepower, to 279 horsepower; for 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 April 24, 2018.