M MattTheBat83 New Member Mar 31, 2006 203 0 0 Aug 3, 2006 #1 Aug 3, 2006 #1 what spark plugs should i put in my gt40 irons? and what should i gap them to?
1 1SLO306 My 97 GTP owns you ALL! Mar 31, 2005 904 1 17 Muhlenberg, ky Aug 3, 2006 #2 Aug 3, 2006 #2 i would say autolite 25's with a .052 gap or so