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Wrenchbender Ret · 04-08-2015, 04:09 PM

Are you hooking the gauge to manifold vacuum? Ported vacuum will not give you correct readings.

04-08-2015, 04:09 PM	#14
Wrenchbender Ret Registered User Join Date: Oct 2005 Location: Overland Park, Ks. Posts: 5,229	Re: Low Vacuum? With good compression? Are you hooking the gauge to manifold vacuum? Ported vacuum will not give you correct readings.