With some turbochargers and nitrous thrown in as well.
When Ford announced it would once again be putting a 5.0-liter V8 in the Mustang, the comparisons to the original Fox body 5-0 started immediately. Sure, the new engine is powerful, but the original is a street racing staple. How could this new 5-0 possibly live up to the legacy of the old one? Well, some street racers in the following video decided to see how the cars stack up, although not in stock form; that wouldn't do. They've obviously been pretty heavily modified.
The new Mustang is a twin turbo, something you'll probably hear right away, while the older car has what must be a pretty hefty shot of nitrous.