I've finally finished with my lump and I did the first 1000 km changed oil filter plugs checked the gasket with a torque wrench.everything was ok and the car was very good on the road and the turbo got in from 2500 rpm.After 2500 rpm it pulled very well and I could feel the torque as the revs climbed.I decided to change the carb plate that has the mixture screw because it was a bit worn and it didn''t idle very well.The plate I changed was even worse so I decided to put the original back in until I found a descent one to replace it.After that it wasn't idling at all and the I decided to change the idling jet as well.It didn't work so i put the old one back in after I cleaned it.After that the car lost all its power and torque and it is much slower that it was.I've changed all the following to find out what is wrong.The carb,the intercooler,the sparkplugs,ecu,I removed the valve that sends cold air form the anti perc fan to the hose that goes from the intercooler to the carb and of course I blocked the hole that was left open,I checked the compression and it is 155 in all 4 cylinders.I am running out of ideas and I need a bit of your help on this.The car is idling fine now and the carb works perfectly but it has lost all its power and torque it feels and sounds like a lathe.