Since it doesn't have an engine code in the 4th option group if its an 8 cylinder car (4 in the 3rd position of the VIN) it will either be a base 327/210Hp (2 barrel) LF7 base engined car, or possibly a 327/275HP (4 barrel) L30 car. I beleive that when your car was made, the L48 (350/295HP) SS was using the 4P code, but I've been wrong on 67 stuff before, since I have a 69.