1-3-2-4 Posted April 6, 2013 Share Posted April 6, 2013 With 251K miles 1- 180 PSI 2- 170 PSI 3- 180 PSI 4- 145 PSI 4 must be low because my shims got mixed up after I had my heads redone.. I'm glad he called to let me know he forgot to give me the shims before I took the 40 mile drive back home, I guess that's why the idle is a tad lumpy but not so bad that your teeth rattle out. Quote Link to comment Share on other sites More sharing options...
nipper Posted April 6, 2013 Share Posted April 6, 2013 That will do it, also could cause a valve to burn Quote Link to comment Share on other sites More sharing options...
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