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6/19/12 11:48pm - Original Message: 'Another Spark Plug Question '
tinbender
Former Member
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edgwood, MD - USA

Vette(s):
1975 convertible,with the hard top and power streering.it a 350 L48 with auto trans. the color is light blue.

Joined: 11/1/2007
Posts: 736
I think that my headers are effecting my engine....when I first start the car it runs (for lack of a better word)normal .But after it runs a little it starts running roughly.....I think this is due to the heat of the headers..Am I on the right track and will boot insulators help reduce or solve my problem . Thanks. Rick
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6/20/12 12:15am - Reply: 'Re: Another Spark Plug Question '
danascar
Standard Member
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Germansville, PA - USA

Vette(s):
1974 Coupe 358ci 4 speed Black w/Medium Saddle interior w/79 custom leather seats

Joined: 1/28/2010
Posts: 763
Had headers on several cars and never encountered the problem...just make sure you have good quality plug wires.

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6/20/12 10:33am - Reply: 'Re: Another Spark Plug Question '
Gunslinger
Former Member
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Frederick, MD - USA

Vette(s):
1969 convertible L71 427/435 4-speed black interior

Joined: 9/8/2003
Posts: 3398
I agree...your plug wires may be breaking down under heat.  There could also be cracks or pinholes in a wire that is allowing the spark to escape to ground.

There are plug wires with high heat boots available as well as heat protector boot sleeves available.  Check out Summit Racing or Jegs for what's available.


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Poet...Mystic...Soldier of Fortune. As always...self-absorbed, adversarial, c o c k y and in general a malcontent.

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