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vac pressure?



My car pulls about 20 in-hg. I think 17 to 20ish is about what you can expect.
Now psi is a different story, thats referring to boost which is about 7 to 8 on a stock pulley.
 
when at idle (full vacuum) you should be in between 15 and 20 in. hg.

my car ran like crap, so i usually only saw 14.
 
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