Sounds like someone manufactured the shift hole themselves. The correct hole is a clean cut with a reinforcement spot welded around it from the underside, unlike the 69 4-speed hole. My 67 is an original 4-speed without console and the shift hole, although not perfectly centered on the tunnel, does not even come close to the edge of the tunnel where it curves downward. All 67's with floorshift auto or manual transmissions have the identical hole in the tunnel. The 68 uses the same configuration but for MANUAL transmissions only. Automatics in 68 used a cable shift eliminating the need for a large hole. If need be, I will photo my shifter. The carpet is removed already.