Starred to just send a PM to Vince, since his avatar is a Challenger, but thought the rest of you may like to know about a quality decal supplier.
All of of the small details on this Challenger are from a decal sheet purchased from RWNeff1 on eBay. The detail and clarity are fantastic. The chrome is actually silver. Decals went on smoothly and did not tear easily. He sells several drag racing related sheets.
Searching via seller name on eBay seldom works for me. If you put in HO Challenger decals, it should take you to him.
If this picture won't zoom in enough, check out the turntable video from the best of show thread.