Gent,
In 1969, the Plymouth 440 'Cuda was classed in 'C/SA' in NHRA Stock Class, and SS/GA in Super/Stock.
Weight-to-Horsepower Break was {8.50 to 8.99 Wt/Hp}
Other '1969' Model Cars in those classes;
* 1969 Dodge Dart GTS 440 {440/375 HP}
* 1969 Plymouth Road Runner 'Six-Barrel' {440/390 HP}
* 1969 Dodge Super Bee 'Six-Pack' {440/390 HP}
* 1969 Chevelle SS 396 {396/375 HP}