01-05-2016, 08:37 AM
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CC Member
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Join Date: Jul 2009
Location: Westerly,
RI
Cobra Make, Engine: Fordstroker 408w custom solid roller-Craft ported Brodix 17*heads-CFM ported Vic Jr. intake-1 3/4 primaries- 575hp-TKO-600RR Liberty upgrade- -Moser 8.8 trutrac-McLeod Street Extreme--QA-1-Wilwood brakes, Classic Chambered 3" Cobrapacks, Avon's
Posts: 645
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Not Ranked
It's not the idle mixture screes that directly effect the vacuum reading it's the idle speed. Clean up the idle with the screws and then set your idle to therpm you want. Vacuum reading should be taken at the same rpm to compare otherwise you'll have different readings
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Lou
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