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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