5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Plug gap

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Old 01-12-2009, 06:11 PM
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FuzzyDiceRule
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Default Plug gap

Hey, i have a hunch that improperly gapped plugs may be causing some problems in my car, just a hunch, dont bash it or question it

if you dont know, i have a 5.0 with AFR 165 heads, Edelbrock intake, Crane Cam, and an MSD 6Al and Dizzy. what should my plug gap be?
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Old 01-12-2009, 06:23 PM
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91lx50udlose
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i dont know if it is any different with the afr heads but stock is .052-.056
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Old 01-12-2009, 06:32 PM
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FuzzyDiceRule
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the MSD is what will do it, ive been told to run it lower with aftermarket ignition, but im not sure, and want a second (or third i guess) opinion
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Old 01-12-2009, 06:34 PM
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Portmaster
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Depends on the plug you are using
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Old 01-12-2009, 06:36 PM
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I run autolite with a .045 gap witha Mallory 6AL digital
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Old 01-12-2009, 06:37 PM
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I ran .045 in my all MSD equipted BBC's
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