Can't get the idle lower, Holley carb

Carburetor transfer slots squared? : rEngineBuilding holley transfer slot adjustment I replaced the secondary butterfly adjustment screw with an allen wrench setscrew This allowed minute adjustments with the carb on the car, and new online slot sites uk The transfer slot is still more exposed than it should be The idle set screw needs to be about two full turns in after initial contact and

windwalker best in slot adjustment setting curb idle speed in this way will offer much better throttle response due to proper transfer slot placement on the primaries