I'm looking for a new steering cable, but I don't know what kind I should get. I have a Johnson 115 single cable with no power steering. The one I took off is a rack style system.

Since I don't have power steering, do I have to get a system with "No feed-back"? (I mean its only a 115)

Also am I able to switch to the rotary style... or do I need to stay with the rack?