The Fish carburetor was invented by John Robert Fish and was ingeniously simple. A ram-air-pressurized float bowl got around the problem of fuel slosh starvation and a vaporization slot metered fuel automatically according to airflow without jets.
The Fish self-adjusted to a wide range of engine sizes, altitudes, and performance demands without having to change out jets, power valves, accelerator pumps, or venturi.
Fireball Roberts raced successfully with a Fish carburetor, and the design lived in the Minnow Fish and later Reece Fish series. The Fish had its adherents and successes in racing circles, but the design never gained mainstream popularity despite its performance advantages.
https://www.hagerty.com/articles-videos/articles/2019/09/11/off-beat-carburetors-to-check-out
Jesse, thanks for a reminder of my late father. He taught me about this innovative design, though he was kind of in the tinfoil hat brigade that said it would give you exponentially better gas mileage. Its main advantages were the ability to be adjusted for just about any motor, and once adjusted it stayed that way and would never need a rebuild.
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