what size tires on 15x8

[e30this]

What size tire on 15x8 with 4 1/2 inch back spacing.
Im not realling looking to stretch them.
I pretty much want them to be straight up and down and not look like a bubble.
I was thinking 215/50 would be nice.
I had 16x8 and ran 215/40. ( see sig below. )

[redhatpat]

225/50/15

[e30this]

I did a edit to the first post. I seen I put 4 1/4 but its 4 1/2.

[Hartge_H27]

i say 215