A vacuum/fuel pressure gauge costs less than a good hamburger and fries at a casual dining restaurant, and the vacuum gauge needs to be used every time the idle mixture is adjusted on a carbureted engine. Every FLAPS has one on the shelf with the rest of the basic tuneup tools like feeler gauges and compression testers. I guess it's simpler to make wild-donkey guesses and then bloviate about them.

https://www.harborfreight.com/fuel-pump-and-vacuum-tester-62637.html

Jerry


Last edited by Hotrod Lincoln; 02/09/2020 7:48 PM.
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