Any box that is 2 1/2 turns lock to lock won't have enough turning radius for an A-body. You'll lose your ability to make U-turns if that matters to you.
Chevelles boxes need 87˚ of travel which is exactly what Jeep GC & Impala SS/Caprice boxes have & made them such a popular swap.
Chevelles boxes need 87˚ of travel which is exactly what Jeep GC & Impala SS/Caprice boxes have & made them such a popular swap.