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35th sc bird
12-15-2012, 08:15 AM
I have a 90 SC 3.8 what are the best plugs to run?

Scott Long
12-15-2012, 08:41 AM
Autolite 103 gapped to .040"

or Autolite XP103.

Check out this thread: http://sccoa.com/forums/showthread.php?t=116497