[Mike Carr]

The original US Class Nationals allowed ALL cars, NHRA and IHRA, that were legal S/SS cars. That's the only way to do it. For concerns in Class Eliminations situtations, if a car can fit both sanctioning bodies, use the NHRA class and horsepower. Use the NHRA/IHRA-only rules, for cars that only fit one (Pure Stock, Stock/GT, Crate Motor, etc).

Making a race like this (or ANY combo race) an NHRA-only event is near-sightedness at best, and assinine at worst.