Trying to figure out how to acurately use this vacuum gauge!!
The gauge I have starts at 0 and goes to -30 and has the readings of decelerate idle fair and poor.
I can't figure out where to shift. If I go above 3000 Rpms my vacuum gets better so do I let it go above 3k or keep it at 2500?
If I shift at 2500-2800 my vacuum gauge will go down to poor or -5 after I shift. If I shift at like 3200 it's less of a load after the shift.
What do you guys think
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1998 Honda civic Lx sedan 5sp completely stock with lowering kit 2in drop full fresh factory tune up and ngk plugs ngk blue wires. Just added vacuum gauge
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