Can I get away with mounting GoodYear Eagle DragWay Special Slicks in the size of 28X9X15 on a 15X7 cop rim? Or is 7" too narrow and I should find an 8" rim?

Anyone else get way with mounting 9" slicks on a cop rim?

Car is a '67 Satellite so I don't have much room in the wheel wells, plus I already have the cop rims. Thanks.