Hello, I am new to this forum. I am conducting a frame off restoration on a 1972 GS stage1. My dilemma is the car was a factory automatic then converted to a 4-spd manual at some point in its life. I like the 4-spd but i am trying to go as original as possible. Should I leave the 4-spd in the car or go back to the th400? How do you guys feel this effects the value of the car?