Vacuum Reading

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May 10th, 2015, 05:19 PM

nelsontj

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Join Date: Feb 2009

Posts: 139

Vacuum Reading

What should I be getting for a vacuum reading on my 1970 Oldsmobile 442 with stock motor and stock cam? Nothing has been altered since it came from the factory.

May 10th, 2015, 06:36 PM

pogo69

morgan

Join Date: Mar 2011

Location: CT

Posts: 1,925

A steady 18 -20 would be ideal but 15 is healthy if you have the 328 cam about 10 to 12 is about right

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