15 x 7 inch wheels

Have (4) 15x7 steel wheels with a 4.25" back space. Want to run the same size tire all around. I'm leaning towards 215/70R15 tires. The car is a 68 Camaro with a SBC, no AC, rebuilt suspension with new, replacement Moog Z/28 springs in the front and 5 leaf rear springs. Want nice, all around...