no probs with the clutch, its a mal wood opt3 with f/wheel and alloy csc. the clutch is supposed to be good for 400. the drive home was awsome 1/4 tank of fuel and hammering around corners is somthing new. the surge tank cv fitted today has the option of fitting a second pump just by removing a bung, this will be added when my atomic donk gets fitted. I havnt yet played with the xcal2 but I will post up some info soon as I get to it. im looking forward to using the data logging at the strip, it will be interesting to see what I can do with it.