Fuel injection isn’t new. Inventors of the internal combustion engine began toying with the concept in the late 1890s, and by the 1920s fuel injection had become common in diesel truck engines. During WW1 and WWII, aircraft engines employed mechanical fuel injection, as it was less sensitive to g-forces and changes in altitude.
That said, early hot rodders – the pre-WWII lakes runners, circle-track racers, and Indy 500 machines – relied exclusively on carburetor-fed power plants. It’s not that fuel injection was unknown, but there wasn’t a proven injection system that could usurp the traditional float-bowl, venturi-jet devices.
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