Holley Idle Screws Not Responsive

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Hi George, I was there racing on Saturday. Were you there? Still having issues with the idle screws but I will figure it out eventually. It doesn't like the 4 corner idle. It seems that the secondary side doesn't like to share with the primary side. Here are the engine pictures you asked about (MSD box is under battery tray).

eng1.jpg


eng2.jpg
 
Sounds like you need idle restrictors put in your metering blocks. They allow more tuning of the idle mix screws.
 
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