Holley carb adjustment basics

website holley transfer slot adjustment In the idle condition the transfer slots should give the appearance of a small square when viewed from underneath the base plate 4x4 mega slot Open them both the same amount, or be able to adjust the secondary closed enough to allow the squaring of the transfer slot with the primary

holley transfer slot adjustment 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  You need a little of the slot Its perfectly fine to adjust the secondary plate slightly to achieve idle, i have tried to aim for even primary  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

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