Setting Up Holley Transfer Slots

Tuning Your Holley Carburetor Made Easy holley transfer slot adjustment As the throttle valves opens, a slot is exposed allowing more air fuel to enter the bore Remove the idle mixture screws to make sure the passage to the idle is cum slot Other carbs have notches milled into the throttle blades right at the transfer slot Some carbs have an adjustable bolt you can screw in or out

ace round slot A good starting point for setting the secondary butterflies is to adjust the screw so that the transfer slot is visible on the intake manifold