Here is one of many threads on the subject that might give you some guidance. At the bottom of this section you will see the advanced search button, go there, type in "spark plugs", select Hinckley Classics and "all terms". Lots and lots of spark plug talk.
HTH and good luck.
Sparkys
[ This message was edited by: bobshields55 on 2005-10-23 18:55 ]
