did I say it handled good ? no I didn't , its a 42 year old car , with factory parts . the question was about the torsion bars. it doesn't handle any better or any worse than the factory design. and it is not all "jacked up". don't get all mad because you don't like what I have to say. apparently you don't have any concept of experiencing it first hand.
I can't speak for the 74 model, but the 73 /6 uses the same bar as the 318 w/o A/C. (source: 73 Dodge Parts Manual) That tends to validate the assertion that the weight difference between the 318 and 225 is not that much.
