1966 G/Stock Wars ~ Mopar 273/235 HP ~ Chevy 283/220 HP ~ Ford 289/225 HP
Current NHRA Horsepower Factors
Engine.............................. Stock......Super Stock
Mopar 273/235 HP ............ 210 ......... 230
Chevrolet 283/220 HP ....... 223 ......... 237
Ford 289/225 HP ............... 207 ......... 215