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Discussion Starter · #1 ·
Hi,

I have a 600CFM holley carb with vacuum secondaries. From pics I have seen on the net there is a small link which goes from the main throttle to the vacumm butterfly.

Is this needed? Mine is missing one and I'm not sure it it will effect performance.

Any help appreciated.
 

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You do need that link as it keeps the secondaries in the correct relationship to the primaries.It also closes the secs when the prim's are quickly closed.You should be able to get a new one ok.The holley part# is 20-53....
 
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