it idles at about 19 to 20 psi, ill check again though.as for the filter, the guy I bought it from didn't do much of anything maintenance wise.Good evening
What is you boost gauge reading at idle? Less than @ 17 vacuum on a stock gauge is a good indicator of a problem. Check all supercharger, intercooler and vacuum connections. Use search in this forum for more information on this subject. If you have a fuel pressure gauge check fuel pressure. When was the fuel filter last changed?
Good luck.
does this sound like a vacuum problem? can I stop throwing money at it? the problem started the same day the balancer died, could it be a crank sensor issue?