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Need help! LS1 sparking at valve covers

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Old Jun 14, 2015 | 08:39 PM
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2001Z28_MDH's Avatar
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Default Need help! LS1 sparking at valve covers

My z28 that I use for a daily has started running rough in the past day or 2. I opened the hood tonight to check if any of the plug wires were loose or cut in 2, and noticed almost every coil pack/ area on the passenger side was arcing to the valve cover. It comes and goes as if there is a bad ground also. Any of you all know where to start looking for possible issues, bad coil, ground to valve cover or engine? Any help is appreciated.
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Old Jun 15, 2015 | 05:12 AM
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how old are the plugs and plug wires?
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Old Jun 15, 2015 | 06:27 AM
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80,000 on msd wires, 30,000 on plugs
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Old Jun 15, 2015 | 06:51 AM
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" It comes and goes as if there is a bad ground also."
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