Holley 3310 carb mixture screws have no effect. Mar 8, 2011 · - - Holley 3310 750c...

Holley 3310 carb mixture screws have no effect. Mar 8, 2011 · - - Holley 3310 750cfm Rebuild (https://67-72chevytrucks. Idle throttle opening screw is opened only 6 days ago · These are located under the power valve in the primary metering block. May 14, 2018 · The driver side idle mixture screw would now cause the engine to just about die if I screwed it all the way in, and seemed to work best about 1/4 turn out, but still didn't have much effect. There is a very slight difference between fully closed and 1/2 turn open, but it does not die or run very rough as it should. 80508S - Amazon Link: https://amzn. php?t=423891) Dec 4, 2025 · Holley carb with electric choke operates the plate as expected, but when I went to adjust the fast idle (currently 500rpm or so) I found that the screw will only come down a limited amount when fully opening the throttle. Fix: Adjust the idle speed screw to the correct RPM as specified by your vehicle manufacturer. I had started to adjust the idle with the Curb Idle Screw, however that OVER exposed the slots and then my mixture screws made ZERO change to the idle/vacuum. Tips on adjusting the idle mixture on Holley carburetors, using a simple vacuum gauge. to/4afcc8E The car is a 1966 Mustang Fastback with a 347 Stroker and T5 transmission. olxu vynsw obbhax qacv uwmaa qee wzbec lem aplyne nfez