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More 2013 End of Year Stock and Super Stock Horsepower Adjustments Announced

  • Jan 8, 2014
  • 1 min read

Stock Horsepower Changes   complete for 2nd half rating period 2013

 

 

Engine Make     CID     OEM HP     NHRA HP   New HP      Years affected

 

 GM                   346         405             313          405                   03-04 Camaro,Firebird

 

 Mopar               440         390             380          375                   69 GT

 

Mopar                440         370-375      350          345                   68-71 Dart

57819

 
 
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