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low volts-miss in idle sometimes...

605 Views 4 Replies 3 Participants Last post by  thunderstruck507
I think i might answer my own question here. But any other feedback is great.

drove to work yesterday 20 miles. after getting off the freeway my car felt like it was missing and the idle was a little rough.

Same thing again today but not as repetitive.

Once i get going i dont notice it. Only at idle.

In the past It was a spark plug wire ARCing off the header. I have been through 2 sets of wires. Some MSD super conductors did it after about 5 months and now Im on some Accel wires.

If it is the wires. How do I keep killing them? Is it just the heat? Am i gonan have to shell out the cash for some ceramic boots

ANy other opinions are welcome.

Oh yeah when this happens the voltmeter hops around alittle or stays around the 11-12 range.

Most of the time it is 13 sometime 14.

This is with running no elctric fan. No radio on.
383 600 cfm carb, headers and a 7 month old Accel HEI setup.
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external regulator? You mean that box up near the headlights right?

Only sometimes. This morning is wasnt jumping around at idle but i could tell there was a slight miss in the idle. it sounds totally normally just every once and ahile i get a "putt putt".

If that makes sense.

Last night while driving home with the lights on voltmeter was jumping around a little.
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