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Reply to "Idle adjustment DRLA 40s"

“When I got these carburetors from Gabrielle in Italy he expressly directed not to touch those as they came calibrated with factory equipment that he has.”

That’s great, (he might even use a flow bench) but once you place them on the intake manifolds, everything has now changed to what your engine is doing, not his “factory equipment”.  Everything I’ve read and experienced with my Dells is start with the air bypass (bleed) screws all the way in and then adjust them out individually, as needed, as you sync all four throats.  

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