DOES THE HDK SUSPENSION K-MEMBER HANDLE BETTER THAN A T-BAR SUSPENSION?

A great example. Most of the guys at Hot Rod would probably have pegged you as someone only interested in restoration of your car, because in their mind the only way a car can be made to handle is to buy aftermarket parts. And thus (to them) you don't care about handling.
Your point is not clear to me. My point here was at a time when I was still in high school over 50 years ago at the beginning of disc brakes I was adding a sway bar and bigger brakes, a square tire set-up and aero tricks which was so beyond the normal hot rod path at that time. Restoration really didn't even really exist yet except for maybe Duesenberg or a Tucker.