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Old 08-10-2003, 10:37 PM
Arthur Dalton Arthur Dalton is offline
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Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,784
If you have a vac gauge, hook it to intake vac source .
As you increase the rpm , you will see more vac ... hold the throttle at 2500 and watch gauge ... if it drops off [ less vac.],
the cat is not allowing passage..-[ engine can not breath, restricting amount of intake air needed ]
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