Brought a 57 Cameo home and the previous owner had just installed brand new Coker American Classic blackwalls 710R15 size on it and they look very like bias ply but are radials and drive / steer amazing but I want white walls so my loss your gain! These are 305 each if you buy from Coker and mine have less than 100 miles on them so a bargain at only $1000 shipped! Here's the link https://www.cokertire.com/tires/american-classic-710r15-blackwall.html