Thank you first off to anyone that may be able to help. I found these wheels and I am not sure if they will fit my 1978 911 sc. Here is a link to the wheels I found a used set with the following tires on them Tires are included, 18's the rear tires are 265/35/18, front 235/40/18, Here is a link to the wheels
RH-GMP Wheels Porsche AG-Cup (P1)