I have a '67 2 door sedan that I'm putting a full AMD floor in. I'm going to split the floor right over the center of the torsion bar crossmember and stitch it back together there. It will be invisible from underneath...
Why would you need to split it? An AMD floor pan will fit a 67-76 A body perfectly without cutting it. On a sedan, you might have to take the windshield out to get it in as one piece. If you don't want to do that, and don't need anything but the front half...then it might be best to cut it.
