eyy philthyca ! let me tell you something (sorry my english is bad, i'm panamenian) Conserve your car, i dont know how old are you , but, is you are young. is nice when someone see your car and say...waoo is a 72 classic Datsun. no everybody can have the luck that you have. conserve for 72 1200
i use 14 inch in my 1200 datsun with a 195/60 tires and i dont have problems in the fender and the car work good. i down the suspension and look great and i have good relations in the sharp curve. Sorry by my bad english, i'm Panamenian guy ! Best Regards