I have a 90 SC 3.8 what are the best plugs to run?
S Scott Long Registered User Dec 15, 2012 #2 Autolite 103 gapped to .040" or Autolite XP103. Check out this thread: http://sccoa.com/forums/showthread.php?t=116497 Last edited: Dec 15, 2012
Autolite 103 gapped to .040" or Autolite XP103. Check out this thread: http://sccoa.com/forums/showthread.php?t=116497