What size tire using 15x6 wheel?

matthon said
Would a 15x7, 4.125 backspace, +3mm offset work on a Barracuda?

No idea on tire size, but does the 26" tall max recommendation apply to a wider wheel?

Cragar 61C Series S/S Super Sport Chrome Wheels 1521912402B

Thanks I missed that wheel, it must be NOS that Summit has, as it is not list in Cragar's current website.
In this case I think going to the 7 inch wheel may create more problems.
Great find.