I imsvtcrazy New Member Sep 4, 2004 6 0 0 Sep 15, 2004 #1 Sep 15, 2004 #1 what kind of vacuum is normal when de-accelerating after wot
S ss93cobra Founding Member Apr 10, 2002 1,422 1 0 Wilmington NC Sep 15, 2004 #2 Sep 15, 2004 #2 Sharp increase in vacuum to @20-25 on my gauge anyways...
giddyup306 Founding Member Oct 22, 2002 3,041 2 59 Sep 15, 2004 #3 Sep 15, 2004 #3 On some cars it may be as high as 28" hg. Most cars should produce at least 20" hg.
