secondary transfer slot adjustment holley 4150 hp 750cfm

holley transfer slot adjustment   Dan solo slot

This uncovers the idle transfer slot, which can cause off-idle stumble problems The only way to spot this problem is to remove the carburetor

If I remember right you don't want more than 060 of the transfer slot showing, I usually set the secondary throttle blades open to that point I checked the timed vacuum port and i'm getting zero vac there so the throttle is closed enough for that, plus the transfer portslot is exposed

warlords crystals of power 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 I bet your idle adjust screws are about 12 a turn out 1 take the carb off and square up your idle transfer slot 3 Turn the idle mixture