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cylinder head work need help please!!!!

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Old 04-05-2013, 07:55 PM
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Default cylinder head work need help please!!!!

Ok I did a port job to a 7120 got it milled 0.10 and used the slim mopar performance head gasket the problem im having is that my spark plugs are going bad really quickly I changed them a couple weeks ago and there going bad again has any one had this problem? If so how did you solve it? Please help me guys this is my DD and its killing my M.P.G's currently its the stock ignition with autolite 985 copper core spark plugs. HELP JEEP DOWN!
Old 04-05-2013, 08:17 PM
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Have you double checked the gap? Should be .35, may be different being the your head was milled down. Try to gap the plug to .40 and see if that helps???
Old 04-05-2013, 08:47 PM
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Try a set of Bosch IV's.
Old 04-05-2013, 08:58 PM
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Originally Posted by XJGunny
Have you double checked the gap? Should be .35, may be different being the your head was milled down. Try to gap the plug to .40 and see if that helps???
there currently gapped to .40
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