The full throttle up shift adjustment is on the Valve body. Any adjustments will raise ALL the up shifts.


Any full throttle kick down up shift, should happen just under red line on your tack. Your owners manual will have the RPM number.

If you have a problem with the 1st to 2nd full throttle up shift only, it could be valve body related or 1st gear (B2) is slipping. The delay movement may also be the result of a problem in the B2 system. With the wrong torque converter stall speed, to high, you need more throttle from a stop to move the car, that’s another possibility

Take it back to the shop that did the work.