Steve Jelf had posted a link to O'reillys for new champion X plugs
http://www.oreillyauto.com/site/c/detail/CHP1/425.oap?ck=Search_99994_1213489_-1 &pt=99994&ppt=C0327
so I went to see If I could get a set to replace the 525's that were in my T and they were offering a "new Military Discount" It took about 7 bucks a plug off the price, Always nice people and they are carrying older parts like leather wheel bearing seals for my 46 So I thought O'Reilly's deserved a shout out! and they got here overnight!
I buy lots of stuff from O'Reilly's. About the only place in town where you can get 6 volt bulbs!
Good price for plugs- $21.99.
Hmmmmmm . . . . $21.49 for my zip code 78644. That way I can buy a set, sell 'em to James and make 2 bucks !! ;o)