With its central float chambers, full calibration capabilities, compact alloy body and wide variety of available sizes, the IDF Series has been and continues to be the winning choice for a synchronous, 2 barrel, downdraft carburetor. The IDF features diaphragm type accelerator pump circuits and ball bearing throttle shafts. When used with an adapter, the IDF will replace the Solex 40 PII carburetors used on many Porsches. The IDF is ideal for use on most opposed-cylinder engines, or on engines where the intake ports are nearly vertical. Offering relative low cost for performance gained, the IDF is hard to beat.
Factory Calibrations are (Reference guide only) .
36mm chokes, 4.5 aux venturi, F11 emulsion tube, 135 main jet, 175 air corrector, 50 idle jet, 50 pump jet, 55 spill jet, 200 needle valve
The air horns are 56mm in height
