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

The horsepower rating for 1975 Ford Mustang, entries with the 302 cubic inch engine and a factory rating of 129 currently rated at 129, has been increased by five horsepower, to 134 horsepower; for Stock Eliminator.

NHRA's 2016 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 May 17, 2016.