I have not done anything to the fuel adjustment yet. I have shorten the wastegate rod to increase boost. Perfommance is excelent I can go up hill in 4th gear without any prob. It seems like more power at about 2800rpm, I can go from 100km/h to 120km/h easily. There is plenty of power left, I hardly need to put the foot on the floor now. Worth of 5 hours work, very happy.