motorcraft spark plug gap????? - Muscular Mustangs
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post #1 of 2 Old 06-17-2008, 09:34 PM Thread Starter
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motorcraft spark plug gap?????

hi, i was wondering if anyone could help me with the spark plug gap on a 88 mustang 5.0...the only mods i have are(70mm throttle,headers,b 303 cam,373 gears )and thats it..i put them at 0.45 but im really not sure,some say 0.52 or 0.54
holotoftrouble is offline  
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post #2 of 2 Old 06-18-2008, 12:08 PM
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Well Ford recommends .52 but a few guys I've known building their Mustangs up gapped them at .35 I really don't know if you'll notice a difference or why Ford wanted them so wide to begin with.

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