As is the case with all pre-1972 American passenger vehicle engines, printed horsepower and torque figures for all those a long time have been SAE "Gross," rather than 1972 and afterwards SAE Web scores (which are indicative of what actual production engines create within their "as installed" state - with https://roket303rtp09865.dailyhitblog.com/37040425/the-5-second-trick-for-roket303