Even under Dale's watchfull eye, it appears that those cars running in HMC are devaloping much more horsepower than they did period. Technology has moved on, methods of gaining hp have changed more than subtley, so where does the line stop. The OSCA V8's were getting around 400hp, thats the good ones, back in the 70's and 80's, with the exception of the Wills RX8, that was getting closer to 500hp, many of the middle of the pack cars in HMC would seem to be up around 500hp with those with a few more dollars and knowledge probably over 600hp. So its not only classes of the cars but also the performance increases that should be considered.