Country of Origin: United States
My vacuum pump was only pulling 22" of vacuum , on the Caprice . I looked the hose from the low pressure port of the gauge set , to the high pressure port & turned the pump on .
This setup should yield a reading of the max vacuum the pump can pull ? Still 22" .
Now , I can not say the pump or the gauge is the best in the world ?
But I am at an elevation of ~ 3,250 feet . So , how much vacuum should good equipment pull at this elevation ?
this may help.
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