I tried to find tires for my wheels for my 67 CST...no body would even touch the split rims...so I just got some 285/75's by goodyear... not too big...30 &1/2" tall...305's would fit...but I like the 285's...I bought some basic chrome rims...
are you using the split rims?
good luck...t
love that blue by the way! I am ordering that wheel and door trim for mine too...