Stock plugs do fine but you can always upgrade to the Motorcraft AZFS22C copper plugs... they have to be replaced more often but they provide a better spark.... and they go for around $8 a set.
[B]1951 McCormick FARMALL M
2007 MINI Cooper S Turbo... new project car
1998 Chevy 3500 Ext cab, long bed, 4x4, duelly, turbo diesel
2004 Harley V-Rod.... sex on wheels
2011 Harley Electra Glide Ultra Limited