Re: Distributor Locking Screw, HELP!
Considering the risk of chips getting into the valve galley, i personally would pull the head, drill out the hole, and then either install a heli-coil (or variant, I generally use TimeSert) or thread oversize. If you do the latter you will need to face the new stud with the little teat on the end to fit into the groove on the distributor.
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JayJay
San Francisco Bay Area
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1930 Murray Town Sedan
1931 Briggs S/W Town Sedan
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