Bear, make sure you match up any carb change with the manifold of course. As for the steering GB, I replaced mine a few years ago with a tighter turn-ratio one from Classic. Bolt-in project that was easier than I suspected. Replace Rag joint and all related hardware as well of course. Very happy with its performance. See attached.
'68 428 HO M3 Monster, 4-on-the-floor! Need I say more?