Has anyone heard of these spark plugs?
http://www.modulardepot.com/product_info.php?cPath=20_58&products_id=261
http://www.silvermustangs.com/forum/viewtopic.php?t=4918
http://www.modulardepot.com/product_info.php?cPath=20_58&products_id=261
http://www.silvermustangs.com/forum/viewtopic.php?t=4918