Re: Spark Plug Protrusion into Head?
Boy, that's strange! I wonder if someone has modified your heads or they are from different production periods. Mine came straight from Speedway in the late '90's and have been sitting on the shelf ever since because of my involvement with the Edmunds heads, and I know they haven't been messed with.
Anthony, would it be possible to get a close up photo of the top of the spark plug hole? Except for the carbon, the bottom looks just like mine.
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