[Dumpling]

Originally Posted by Gaz64

Unlikely, since every engine needs to have an idle circuit.

The idle circuit, is really the low speed circuit.

The engine runs on this up to 2500 rpm or so, for light throttle use.

Gary

..........

Ford sought to find a better solution back in the “Total Performance” days of the late ’60s. SCCA Trans-Am racing was in the spotlight. While multiple carbs with an appropriately designed intake manifold could reduce the manifold layout compromises, the SCCA rules presiding over the series dictated that only a single four-barrel carb could be used. Seeking to improve distribution in the induction system, Ford introduced the notorious Autolite inline four-barrel carb. The idea was to arrange all four barrels in a row, a layout that is intrinsically superior at providing mixture to all of the cylinders along the length of the engine. The original Autolite inline four-barrels were purely “race-only” carbs, and were never used on a production car. Early versions of these carbs did not even have an idle circuit. Though the basic layout proved valid then, development was short lived, since once Ford pulled out of racing in 1970, the inline carb was essentially dead.