need pics of 1966 273 4 bbl A-833 clutch z bar
as shown above, it bolts to the inner apron just above the rail. if you don't have the bracket you'll need to find or fab one up.
if that's the area that was garage-bodge'd up, then you'll likely need that piece of the apron or to fab it as well.
i'll get an unobstructed pic later today. the motor is out of the 65 project