904 Problem

I have a 904 that was behind my 273 commando. It has a Trans-Go shift kit, although it's an older version, an SK TF-SC-A. It shifted nicely behind the 273 with a stock converter.
Now I added 100 cubic inches and it's acting up. It's reving between the 1/2 2/3 shift. Tried adjusting the kickdown and there's no change. Took the pan off and cranked up the pressure and still no change.

I had it rebuilt when I built the new engine a few years ago and I added a 2800 stall converter and a 5200 hemi governer. Do those affect the shifting in that way? Do I need a TF-2 updated kit?

Any help will be appreciated.
Author: admin