Quote:
Originally Posted by Zman
On one of my GG 250 heads the spark plug was drilled a degree or 2 off perpendicular which was a nightmare to cut the face for squish. I wonder if they mill the heads at the factory with a 4 jaw chuck or some tool that holds the head from the head stud holes?
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That sounds like mine, looks ok from the top but when you look at it closely the hole is clearly not central inside the dome.