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06-13-2016, 12:45 PM
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Registered User
Join Date: Mar 2016
Location: Rocky Mount NC
Posts: 130
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Wore-out Old Spark Plugs
So Saturday I replaced the spark plugs in my '81 C10 with the 250 inline six. Here's what they looked like... that's cylinders 1 through 6 from left to right.
  Now I know that a dry, light-brown deposit means normal operation... but there are limits! Truck is running somewhat stronger now at low revs, thanks to six new AC/Delcos. |
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