Thanks you for the explanation of how they work and the attachments. Very interesting. I don't remember hearing of these before. I've done a little looking around. A decent simple carb seems like something that would be much better known. I really like the pressure differential part. Around here a 3,000'-5,000' difference in elevation can occur on a trip to town.
OK, I have heard of them at least the Brown version from Utah. Sounds like they worked better than "They" wanted us to know.
FISH Carbs