Can anyone tell me if there is a site that I can go to to read any information on testing vacuum in a SBC. I'm looking for carb testing, intake and vacuum advance info. I just want to get an idea about the lbs that everything should read. The tester I bought is suppose to be of good quality but the instuctions to read it suck. I'll try to include a picture of the face.

Gauge Pic. Sorry new camera for Christmas and I'm just learning to do close ups.

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