<VV> Wheel questions

[Lonny Clark]

Has anyone tried the Scott Drake wheel yet (on early models with 4 X 4.5)?
https://www.summitracing.com/parts/sdk-lw40-40644b

Do they fit?

I was looking for 14X6 or 15X6 wheels for a '63, these are pretty new on
the market. Backspace is only 3.75, which sounds a little short to me.

The ad says that their expected audience is early Mustang (6-cyl only, I
assume). I have early Mustang 13" wheels on my Corvair already, the
backspace seems OK but I've never measured it - center hole is tight though.

Lonny Clark