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

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.

My point was that from viewpoint of a GM journalist, you must not have cared about handling. If you did, you would have bought aftermarket parts, not stock parts.