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Old 01-30-2013, 10:19 PM   #1
erikh09
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which sparkplugs to use...suggestions please!!

Hi all,

I am wondering what sparkplugs you all are running. I have a mild 350 with a set of headers from Summit racing in my 67 GMC. Problem is 2 or 3 of the sparkplugs are too tight to the header once I put the boot on...the boot actually touched the header. I do not want to dimple the header so I guess I need to run shorty style plugs unless someone has had this issue in the past and would like to lend a little insight.

Thanks all!

Erik
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Old 01-30-2013, 10:36 PM   #2
geezer#99
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Re: which sparkplugs to use...suggestions please!!

Accel makes some shorter plugs.
http://www.northernautoparts.com/Pro...ProductId=2757
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Old 01-30-2013, 10:41 PM   #3
70cst
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Re: which sparkplugs to use...suggestions please!!

Here you go ...

What spark plugs do you use?
http://67-72chevytrucks.com/vboard/s...d.php?t=546068

need help picking spark plugs
http://67-72chevytrucks.com/vboard/s...d.php?t=526793

Spark plugs
http://67-72chevytrucks.com/vboard/s...d.php?t=497226

Spark Plugs
http://67-72chevytrucks.com/vboard/s...d.php?t=464842
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Old 01-31-2013, 08:22 PM   #4
erikh09
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Re: which sparkplugs to use...suggestions please!!

Thanks all!
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Old 01-31-2013, 09:40 PM   #5
cubber
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Re: which sparkplugs to use...suggestions please!!

ngk ur5. clears good!
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