Lagging when shifting?? (727 auto, w/ full manual valve body)

Please clarify. Your title line says "W/ FULL MANUAL VALVE BODY." If it is indeed a full manual valve body then you don't have "D" you have 3rd gear. A fully manual valve body does not shift automatically at all.

Huh, now I'm even more confused lol!! I was told there was a full manual valve body on it, and it DOES shift by itself...... So I'm guessing that means I don't have one?