on my strut tower it says to run 0.9mm spark plug gap. if someboby could help me out with this one would be great. when they say 0.9mm or is it anything between 0.900mm or 0.999mm. the motor is hsv 215kw 5.7litre stroker and also the common gap for a 304 is 1.0mm reading out of a manual????![]()
1 mill is fine.
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