Something we tried after the event was to ionize the intake air. I screwed quite a few sheet metal screws (with pointy tips) into the air filter housing, then ran high voltage from an ion generator to each one. External exposed metal was coated with liquid electrical tape to prevent shock or short circuit of the HV.
In reality it did absolutely nothing! After careful consideration I believe the ions were attracting to the metal in the cylinder head like tiny magnets, and wouldn't pull free until the ions were neutralized. Ozone seems much more stable and does give noticeable performance and economy gains.
