Carb Tuning / Vacuum Problems?

inertia said

and those compressions are all even, that's really good,, dis-regard #'s stated,, they change with diff gauges..

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Even #'s are good but when the compression is down 50 lbs. something is drastically wrong, even #'s or not. Gauges should all read very close to the same. If not the gauge is unreliable and needs thrown away.