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Old 06-07-06, 07:26 PM
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dingocooke dingocooke is offline
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Join Date: Jul 2004
Location: The Far Side..........
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Re: Edelbrock performer threaded holes

They have non return valves in them so that the servo stays 'charged' with vacuum; otherwise it would all disappear instantly as the manifold vacuum dropped.
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Steve

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Crendon CR427 Chassis no 0029
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