Thank you, everyone, for the replies. Coker Tire has 165HR13s that are comparable to the 30 year old Continentals but at a price of $245. Looks like authenticity can be expensive. My Seven is a '66 and I've had it since 1972. I haven't driven it for 20 years and now it's going to be a retirement project. Since I want to keep it as original as possible, I want to stick with the narrow tires so as not to overstress the chassis. I'm glad to be aboard.
Bill
Are there any Seven owners in the Hilton Head, Charleston, Savannah area?