spark plugs for 333882 heads??
wondering what kind of plugs i should be looking for to put in my motor. 1975 motor and heads.. 333882 head castings. Probably flat top pistons. MSD digital 6 plus ignition with SS blaster coil. Holly 750 with hooker full headers. NGK YR55 or NGK xR5 I was considering but ill take other options.
Long Gone: 1984 Z28, 1989 RS
Current : 1967 Coupe w/350, 2010 2SS
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