What are the best plugs for a 9.9 (1977)?
Ksmith0110 Petty Officer 2nd Class Joined Jul 18, 2009 Messages 118 Sep 23, 2010 #1 What are the best plugs for a 9.9 (1977)?
R raczekp1 Lieutenant Joined Mar 30, 2010 Messages 1,327 Sep 23, 2010 #2 Re: Spark plugs for a 77 9.9? http://www.sschapterpsa.com/ramblings/Johnson 9.9_15.htm
tashasdaddy Honorary Moderator Emeritus Joined Nov 11, 2005 Messages 51,019 Sep 23, 2010 #3 Re: Spark plugs for a 77 9.9? Champion QL77JC4 gapped at .030.
