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Post by patholt on Feb 12, 2012 17:28:10 GMT -7
just wondering if anyone had an opinon on spark plug indexing have read that the gain ( mileage / power ) is minor but is basicly a free ( aside from effort ) mod opinions please
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Post by rilos61 on Jul 29, 2012 20:41:50 GMT -7
I did mine after a cam swap. don't know that anything changed. it makes sense not to have anything obstructing the spark.
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Post by denner on Aug 27, 2012 18:51:34 GMT -7
I have been indexing spark plugs for years but I don't know if it increases mileage, the real reason for indexing is to keep the ground electrode from hitting the piston dome at high RPM, if you have flat top pistons there should be no problem wherever the electrode ends up
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