Help Boost w/ gauge install on 04 o-z
Originally Posted by livelyjay
Sounds like you might have a vacuum leak somewhere. Double check ALL of your vac lines, and make sure to zip tie the tee fitting and at the gauge, so the lines don't come loose.
Originally Posted by blaze_125
Maybe not. He says -10psi, which is equal to -20 In. Hg 



