Car seems to be running fine but I haven't been out of the garage since the changeover to timing control. A buddy was having cold start issues with his FITech. There are adjustments that can be made to the fuel prime that should help. My biggest complaint so far is the rpms coming down too far if I leave the clutch engaged too long when coming to a stop. I have read about some adjustments that can be done with the software that should take care of it though. My CANBUS cable comes today so I can link my laptop to the ECU. Should make it much easier to screw everything up.