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<blockquote data-quote="brian84corvette" data-source="post: 8367887" data-attributes="member: 586635">spark plug wires are verry fickle - they are sensitive to corosion and trace voltage bleed out.&nbsp;&nbsp; good electrical spark systems in a viechle can deliver 50,000 volts at half of an amps power to each spark plug to cause the correct time spark / burn in each cylinder.&nbsp; &nbsp; &nbsp;&nbsp; if you have that heavy 1/0 or better size wire resting on top of the spark plug wires - there may be some feed off of each wire to the next that may or may not mess with the way your engine is firing the spark plugs at the correct times for everything to operate most idealy in your engine.i had a spark plug wire ( yellow accell medium performence level ) that got a small cut in the jacket of the wire from being near a heat shield sharp edege on my factory exaust manafold on my 84 vette.&nbsp; &nbsp;&nbsp; i could see a blue spark at night jump from that small cut in the wire to anywehre metal near it in the engine - and it caused a miss fire at the same time.&nbsp; &nbsp; -&nbsp;&nbsp; me thinking i know everything took a piece of rubber fuel line hose and cut it down the middle and wrapped the cut spark plug wire with it completely covering the cut - and then wrapped electrical tape over everything - in the hope of this stoping the missfire of the engine on that cylinder.nope.50,000 volts of electrical energy traveling thru the spark plug path has alot of resistance in the wire - much like how ohms work on our speakers - and that electrical energy wants to jump out to ground anywhere it can.me wraping the cut wire with rubber hose and tape did nothing.when i touched that wire with my hand engine runningi shurely regretted itbecause it shocked the pee out of me.dont mess with spark plug wiresrun your power wire safely somewhere else in your engine bay</blockquote>

[QUOTE="brian84corvette, post: 8367887, member: 586635"] spark plug wires are verry fickle - they are sensitive to corosion and trace voltage bleed out. good electrical spark systems in a viechle can deliver 50,000 volts at half of an amps power to each spark plug to cause the correct time spark / burn in each cylinder. if you have that heavy 1/0 or better size wire resting on top of the spark plug wires - there may be some feed off of each wire to the next that may or may not mess with the way your engine is firing the spark plugs at the correct times for everything to operate most idealy in your engine. i had a spark plug wire ( yellow accell medium performence level ) that got a small cut in the jacket of the wire from being near a heat shield sharp edege on my factory exaust manafold on my 84 vette. i could see a blue spark at night jump from that small cut in the wire to anywehre metal near it in the engine - and it caused a miss fire at the same time. - me thinking i know everything took a piece of rubber fuel line hose and cut it down the middle and wrapped the cut spark plug wire with it completely covering the cut - and then wrapped electrical tape over everything - in the hope of this stoping the missfire of the engine on that cylinder. nope. 50,000 volts of electrical energy traveling thru the spark plug path has alot of resistance in the wire - much like how ohms work on our speakers - and that electrical energy wants to jump out to ground anywhere it can. me wraping the cut wire with rubber hose and tape did nothing. when i touched that wire with my hand engine running i shurely regretted it because it shocked the pee out of me. dont mess with spark plug wires run your power wire safely somewhere else in your engine bay [/QUOTE]

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