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We used the Nordskog gauge to check our idle mixture on this 600-cfm Holley-equipped Chevelle. The best we could get by adjusting the idle mixture screws was 12.8:1 air/fuel ratio.
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We used the Nordskog gauge to check our idle mixture on this 600-cfm Holley-equipped Chevelle. The best we could get by adjusting the idle mixture screws was 12.8:1 air/fuel ratio.  View Related Article

 

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