The NHRA Technical Department recently made changes to the Class Guide.

1965 Chevelle 327 250 separated auto/manual transmission

1969 Camaro 350 300 separated flat and cowl hoods for Stock

1969 Camaro 427 425 separated aluminum and iron heads

Ford 302 385/385 added to class guide 2016 Cobra Jet

Ford 302 575/575 added to class guide 2016 Cobra Jet

Ford 429 470/470 added to class guide 2016 Cobra Jet