727 or 904 came in the 1972 Scamp

I am trying to find shift linkage kit for 727 and 904 transmission but I don't know how to tell which one I have. I am new to finding parts for my car. It is a slant six 225 bore 60 over with a shift kit in the trany and a four barrel holly. I am thinking I want to go to cable linkage for column shifter. But if I can find the rod linkage I would be happy with that.