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The Fish carburetor was invented by John Robert Fish and is often conflated incorrectly with the mythical 100 mpg carburetor. The Fish design 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.Screenshot 2026-01-04 at 10.39.34 PM.png
 
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