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Old 04-17-2013, 09:17 PM   #1
VeryTangled
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Join Date: May 2010
Location: (Not far enough...) Outside of DC
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Default Vacuum testing questions, stock 21 stud

Hello 'Barners, I have two questions about vacuum testing and values.

The engine is a stock 21 stud, helmet dist, stock fuel pump, water pumps in heads, real stock.

Did a vacuum test today, engine cold, gauge attached to the line for the wipers, right off the intake manifold. Readings between 15 and 16 inches at idle which I estimate at 500-600 rpm.

What are the appropriate values? Did I do the test correctly?

Thanks in advance for your input.

-VT/Jeff

Last edited by VeryTangled; 04-17-2013 at 11:14 PM.
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