'71 Demon Pro Street/Touring
Did a little more looking. There's actually lots of 17 and up rims that can be ordered with custom backspacing. The key point is they are custom and so is the price :shock:
I have a set of old 15" slots with about 3.5" backspace. I think I'll bite the bullet and buy customs so I can swap back and forth with the old slots set up with track tires.
The torque thrust customs are one of the better deals especially since I think one could order their non-custom version for up front and still match.
http://www.wheelsforless.com/SearchResult.aspx?Keywords=VN405795
http://www.wheelsforless.com/SearchResult.aspx?Keywords=17x7+2.1&All=True
Still have to narrow down what backspace works up front without spacers.