How To Adjust The Secondary Speed Screw On Holley Carbs

the throttle plate and the transfer slot Applications using a larger cam NOTE: The HOLLEY ALUMINUM ULTRA XP includes the secondary idle adjustment lever that

How To Adjust The Secondary Speed Screw On Holley Carbs I replaced the secondary butterfly adjustment screw with an allen wrench setscrew This allowed minute adjustments with the carb on the car, and

the throttle plate and the transfer slot Applications using a larger cam NOTE: The HOLLEY ALUMINUM ULTRA XP includes the secondary idle adjustment lever that

slot rock How to properly adjust the secondary speed screw on Holley carbs This procedure is only

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

holley transfer slot adjustment I just converted my Holley 4777 to a 4-corner idle When adjusting it, Do you treat the secondary idle transfer slots like the primaries

If you are doing this adjustment on the vehicle, you should see about an18 of the idle transfer slot above the throttle butterfly plates If you don't