Negative pressure supercharging
Wow, that's quite a website. It presents lots of excited words, a few numbers scattered here and there but zero data, some ideas that are difficult to square up with basic principles of how stuff works in this universe, and some giant holes in what's presented as the various operating theories.
This is nowhere near the quality of methodical, scientific, informed research and development Smokey Yunick did (such as
this).
Sounds like they're havin' fun playin' with cars, though!