My 67 Firebird sprint OVH cam 3.8 six. Vent windows a dead givaway to year. I owned a 68 Convertable 400 4 speed before this car. Ex wife has those pics. O yea this had a small block chevy in it , but I put it in myself. Changed out the 3.8 for a 327. Had plans for a 396. But you know how that worked out.