All the job was done in service. But i everyday was looking how work goes. Especially, nothing hard, because i have 1 generation Xedos (without climat control, AC, immobilizer) and the KL 2.5 engine was from 626 1 generation too.
I pull accelerate on 3-rd gear about 2000-2500 rpm. and it runs good.
If you go on 1-st gear about 2000-2500 rpm, and then pull accelerate pedal, you will hear the noise of tire rubbing.
Top speed will be the same, because i have Xedos 6 2.0 gearbox.
I do not like to drive fast, 180 was maximum, once.