STR Posted July 25, 2003 Report Share Posted July 25, 2003 how much vacuum does a stock 3.4dohc have? right now i'm at 15 inHg @ idle. i know this is low due to the RSM ported intake/throtle body. i was just wondering if anyone here knew the stock readings. thanks Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted July 25, 2003 Report Share Posted July 25, 2003 I would think something near 20in of Hg at idle would be close to correct Robby Quote Link to comment Share on other sites More sharing options...
GrandPrix34 Posted July 25, 2003 Report Share Posted July 25, 2003 welcome back robby! Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted July 25, 2003 Report Share Posted July 25, 2003 welcome back robby! Thanks man!!! Robby Quote Link to comment Share on other sites More sharing options...
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