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Old 06-29-2014, 08:03 PM
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Alvin Alvin is offline
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Join Date: Apr 2003
Location: Pontiac Land
Posts: 3,332
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Thxs BentWheel

The ported vacuum switch on the front of the intake manifold should be bright blue...and here's some easy "tuning" info you may find interesting and has always "worked like a charm" on my T/A 6.6's:




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