leathermang:

I was wondering the same as I just did mine with no apparent improvement. Never dawned on me to ream it out until last night when looking through the performance catalog (I noticed the tool).
Are you familiar with how the carbon builds up in there? You eluded to the face that it might be blocking the tip of the glo plug.
I'm wondering if I should yank them out and re-do it?

Don

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