Goob,
Someday I'm going to paint my 67 HOK Ultra Orange, if I ever get around to it. Seems like it's going to take forever. Here's a few links I found where people used it:
http://classictrucks.automotive.com/...uck/index.html
http://www.classictrucks.com/feature...kup/index.html
http://stylingperformance.search-aut....jsp?id=514889
I like the Ultra orange because it has a redish tint to it. It also seems to look different in the shade and in the sun.
Hope this helps.