Love! Love! Love! If muscle cars could return, America WILL be great again.
I take it you mean big-block V8 muscle cars? because the small-block V8s now have horsepower that far exceeds that of the old big blocks, although they use more complex gearing and electronic fuel injection (the closest a small block got back in the day was the 1964 Corvette with a mechanically fuel-injected 327, rated at 395 horses IIRC). The Corvette never had as much horsepower as it does today.