Quote:
Originally Posted by Old Mechanic
Vacuum gauge. Load is measured by subtracting vacuum reading from ambient pressure.
IE ambient 30 inches
VAC reading 10 inches
LOAD 20/30 or 66.6%
regards
mech
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Wow I legitimately didn't know that! Thanks! I think I'll pick up a cheap one the next time I get paid and install it. Now I just have to find out where is the best place to tap into the vacuum system.