Customs 8.20-15 tires on lowered 1950 merc/linc?

I'm planning to put new 8.20-15 tires on my 1950 babylinc, wich is lowered 3" rear and fatman drop spindles in front.

does any body else drive with same setup?

i'm little worried that those tires are too big..

 

Those are big. G-78 or 760's are stock. Those already are almost 28" tall

 

thanks for advice. I ended up to put coker h78-15 in my lincoln and they fit just fine.