'88Cobra Member Oct 21, 2004 46 0 6 Sep 7, 2005 #1 Sep 7, 2005 #1 What spark plugs w/ aluminum GT-40's? I'm just curious if I am suppose to use the factory spark plugs and gap on my aluminum GT-40 heads as you would on the factory cast iron heads? I think I'm having a misfire condition under load and wondering if that could be my problem. Thanks!
What spark plugs w/ aluminum GT-40's? I'm just curious if I am suppose to use the factory spark plugs and gap on my aluminum GT-40 heads as you would on the factory cast iron heads? I think I'm having a misfire condition under load and wondering if that could be my problem. Thanks!