Phil -
I've not ventured to actually see or attempt to reproduce/test any of the patents, but could [at least some of] the gains claimed in those designs been more a matter of airflow profiling? Just as [in high air velocity applications] a single large barrel is far more efficient than multiple smaller barrels, I believe that airflow through the older carbs was a very neglected feature of efficiency gains, and these people may have looked at that as well as vaporization and other enhancements to be able to make those claims, with even an ounce of legitimacy.
I guess I'm asking if it was really snake oil they were cooking up, or if someone just didn't read the recipe correctly?
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