383 build no power

Brother-in-law had that cam in his 73 charger with an 8.5to1 383 400 tq intake and carb it ran best with 40 total timing. Car had 3.23s and stock converter. Car was down on torque but not near as bad as you described. You could still fry the 235 60 15s. Don't get me wrong, the car was no killer. Ran better with the stock hp cam. We were young and thought the cam would make this thing scream. Lesson learned.