Anyone Currently Using a Classic Water Injection System?

Water injection works very well....when done properly. It was used as far back as WW2, possibly before then.

Systems like the Snow system use a high pressure pump that aerates the water into a mist & it sure as hell works. Friend had this system on his 11:1 engine & it stopped the detonation. Snow uses 2 or more nozzles that go into the intake, with nozzles available in different sizes. The old Holley system is just a single nozzle in the air cleaner.