After the war, he began experimenting with ideas for mechanical fuel injection, and tested them on his own race cars.
Only a few years later, his injectors were adopted by professional racers with notable success, including the first to break the 150-mile-per-hour mark.
[3] Hilborn eventually started a company to sell his injection systems to the public, which became popular with the hot rodders of the 1950s and 1960s.
A classic mechanical Hilborn injection system is recognizable by its distinctive flared velocity stack intake pipes, rising straight up from each cylinder, flared at the open top, and usually polished or plated for a bright, shiny finish.
[4] Citing a shrinking market for mechanical fuel injection systems and parts, Holly announced in February of 2024 that they would cease production of Hilborn components.