Real Horsepower of Muscle Cars

I like them from experience. My dad has an all original (except one repaint) 1972 Stage 1 auto. #s matching & stock. The fastest its gone so far is 14.43 seconds in the 1/4 mile with the tires blazing for the first 30ft. And talk about comfortable. Don't get me wrong I'm a mopar nut but I appreciate other cars too.