[Jeff Lee]

I agree with Scott. There is no reason any one "musclecar" platform should have any advantage with AHFS HP over another, i.e., "B"-body Road Runner, Charger, etc., over the "E"-body 'Cuda, Challenger. Furthermore, that would apply the same with musclecars like the Camaro, Nova, Chevelle, etc. If the OEM placed a musclecar engine in the platform, all is equal. The only variance perhaps is "sportscar" platform, i.e., Corvette.

The B-body MOPAR will perform equally as well in Stock with a 426 HEMI as a E-Body Challenger once shipping weights are taken in account for. NHRA has long established there are no considerations for ram-air systems in the vintage musclecars so that takes care of that argument. Same with the Camaro / Nova or Chevelle, Mustang / Fairlane, etc.
If one platform seems to be more effective in Stock, it just proves the right person hasn't been applied to the other platform in my opinion.