Little help with kickdown on Super Six conv

Update: Installed the spring, and used a nut in the slot. Drove it and had super high shifts. So I then moved the nut farther up in the slot, thinking thats what it needs, and the shifts when even higher.
So removed the nut, now shift is happening (at light throttle) 1-2 around 12mph, 2 - 3 around 22mph. No clunk. And I have kickdown in both gears.

Great. What sort of lube can I use in the pivots on the kickdown rod assembly?
White lithium grease in an aerasol can is choice, or just use whatever you have laying around.

To get later shifts you need a finer adjustment than adding a nut+bolt. As you experienced adding that makes the shifts too late. In your case now, if you're unhappy with the current shift points, you'll need to do the adjustment down at the transmission.

**For me personally those shift points are too early. The stock transmission had such early lazy shift points from the factory.