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Old 07-20-2019, 12:53 AM   #10
Mbeef61
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Join Date: Jun 2009
Location: Portland - OR
Posts: 173
Re: Correct Spark plugs?

You can see if they will take the plugs back. If not just sell them on here. Those are the plugs my heads take. Fairly common. Good plugs too. You can squirt a teaspoon of oil or so down the plug hole and see if the compression increases, it may work but usually for slow building compression not zero
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