So after input from the guys here I bought Hoosier speedster vintage race radials. Three go on like butter (Hoosiers usually do,) one will not bead. I have used tire lube, slip, moved it on and off the sealing ring, ran it to over 100lbs and left it overnight, beat the tire with a mallet, bounced the heck out of it, still nothing. The most I can do is change where the tire isn't seated. Took it to a tire store with the same result.
Any wisdom?