TF727 part throttle shift points

just got Jason’s car on the road for shakedown runs.

Everything went very well.

But, the part throttle shift points are a little high.

Here’s the rundown on the combo.

1983 318, 214/224, 444/466, 104 installed intake centerline camshaft. Holley street dominator intake with 390 Holley vac secondary carb.

Stock converter

1972 TF727 with TF2 kit installed. 4.2 kickdown lever.

Cable style kickdown installed and set up properly matching arc of carb lever to kickdown lever, and adjusted to give full pull at full throttle.

Part throttle up shifts were way to high. But the kickdown seemed to work fine.

I kept letting out the TV cable adjustment and the shift RPM dropped to where it’s better, but still to high IMHO, but now it doesn’t kick down. Lol.

What other ways are there to drop part throttle shift RPM?

Currently it shifts 1-2 at 2200 rpm, which is fine. But it shifts 2-3 at 3200 which is a little high I believe.

Here’s a video. Any help is appreciated. Thanks. Eric.