RLSH700

The other thing you have to take into account is that the tires that we have nowdays are far superior to the tires they had back in the 70s as well as the already mentioned modern electronic fuel injection over using two-four barrel carbs, that helps the efficiency and consistency. The transmission if comparing auto vs. auto, the current one has more ratios that will hopefully let the engine rev quicker to begin with as well as keep it within its peak range. The other thing as Paladin mentioned is the fact that we are comparing a gross hp rating to a net hp rating. The truth is the engines according to either MT or C&D (can't remember who did the comparison), found that the engine's were pretty much even in the hp output. Let's just say there are so many different factors which make up this difference, we can't pin it on one particular thing.