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Topic: Spark plug wires

in Forum: C3 Engines


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Spark plug wires (1/4)
 10/13/15 9:02am
Cory454
Former Member

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Vette(s):
1970 LS5


Joined: 12/10/2014
Posts: 5

I purchased my first C3 about a year ago.  Fixed some of the issues with it and have been showing it.  The car does quite well however one thing I keep getting tagged for is the red msd plug wires on the car.  When I purchased the car it had an MSD HEI distributor which I will definitely leave in the car.  My question is will original plug wires negatively effect the way the engine runs or should I just leave it alone?  It is a 454 car. Thanks

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Re: Spark plug wires (2/4)
 10/13/15 11:02am
F4GaryGold Member
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1972 LT-1 convertible with factory air.


Joined: 8/26/2006
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I bought black Taylor wires from Jegs or Summit.  Can't remember which.

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Re: Spark plug wires (3/4)
 10/13/15 2:19pm
kstyerLifetime Member
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1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!


Joined: 12/2/2003
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If you have an HEI coil, the system is okay with original plug wires.  If the system has a MSD coil the stock wires may not be able to handle the power and could start to short out or arc.  Choosing the black MSD wires is a good option.
Re: Spark plug wires (4/4)
 10/13/15 6:24pm
Cory454
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1970 LS5


Joined: 12/10/2014
Posts: 5

kstyer said: If you have an HEI coil, the system is okay with original plug wires.  If the system has a MSD coil the stock wires may not be able to handle the power and could start to short out or arc.  Choosing the black MSD wires is a good option.


 Thanks, that was what I was fearing.  I think I will do that.

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