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Old 07-16-2003, 11:35 PM
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sixto sixto is offline
smoke gets in your eyes
Join Date: Jun 2000
Location: SF Bay Area
Posts: 20,114
No offense, but "I don't have a vacuum gauge" is not a reason to find another way to test your modulator. Get a vacuum gauge. They don't cost that much.

That said, you should see ~18" of vacuum at idle.

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