Post mini tub tire combos?

stumbled on to these photos of my 1967 dart at work while clearing my phone off.

I have 295 50 15 on the rear
stock axle housing custom 10" steelies with dog dish caps with 7 1/4 backspace

on the front i think they are too small for my liking but they are 185 55 15
but i want to switch them to a 25 or 26 inch tall tire[ame="http://s198.photobucket.com/user/dodgedifferent3/media/2014-08-21%2008.42.30_zpsxhy5y9xb.jpg.html"]2014-08-21 08.42.30_zpsxhy5y9xb.jpg Photo by dodgedifferent3 | Photobucket[/ame]
[ame="http://s198.photobucket.com/user/dodgedifferent3/media/2014-08-21%2008.42.04_zpsag4idefg.jpg.html"]2014-08-21 08.42.04_zpsag4idefg.jpg Photo by dodgedifferent3 | Photobucket[/ame]