Thread: Where can I buy GM non HEI plug wires?
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Old 10-04-2007, 04:55 PM
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Default Re: Where can I buy GM non HEI plug wires?
Sounds like a possible coil failure too, often erratic at higher revs..
Is the weak spark on only one lead...and have you tried running it at night, in the dark looking for sparks?.
Best of luck!.

~ Pete
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