02-22-2005, 07:18 AM
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CC Member
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Join Date: Oct 2003
Location: Saratoga Springs,
UT
Cobra Make, Engine: Shell Valley, 418W, tremec 3550tko, 9" ford rear, 3.0 gear, silver/black
Posts: 408
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Not Ranked
spark plug readings
Hi Cobra fanatics, I just replaced the spark plugs in my 418W after 3000 miles and upon looking at the plugs after removal the back two plugs on the drivers side and the back one plug on the passenger side were VERY black and damp. All other plugs were a nice chocolate brown on the porcelin and very clean looking. I am using autolite #25 plugs and wonder if I should go with a hotter plug in the 3 holes that are black or if I have another problem. Any ideas or plug suggestions would be greatly appreciated!
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Terry
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