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One last ? for today - Setting spark plug gaps

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Old 05-14-2004, 01:23 PM
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Custum73
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Default One last ? for today - Setting spark plug gaps

I just got my vette and am going through it replacing fluids, filters, etc. I ordered a set of Autolyte dbl platinum plugs. How do I find out what the gaps should be. The motor is now a 383. That's all I know about the motor until I get ahold of the owner that installed it.


[Modified by Custum73, 1:25 PM 5/14/2004]
Old 05-14-2004, 01:46 PM
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Fevre
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Default Re: One last ? for today - Setting spark plug gaps (Custum73)

Stock points .035
HEI .045
MSD .060

HEI was not stock on 73.
Old 05-14-2004, 02:20 PM
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Stewart's74
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Default Re: One last ? for today - Setting spark plug gaps (Fevre)

:iagree:
Old 05-14-2004, 02:36 PM
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mvftw
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Default Re: One last ? for today - Setting spark plug gaps (Stewart's74)

I wouldn't put platinums in a non-platinum car. The heat ranges are not the same and can cause a miss after a few months. If that happens it will drive you crazy. Use AC Delco.
Old 05-14-2004, 06:19 PM
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rob75383
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Default Re: One last ? for today - Setting spark plug gaps (Custum73)

I recommend you find out what plugs your cylinder head manufacturer suggest, and buy premium plugs of the same heat range.

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