No worries Alvin, she only gets stronger. Booked back in for retune. For some reason ecu gone haywire throwing fuel in motor at full ball and spark plugs not able to burn mix, flooding cylinders, fouling plugs etc. Wierd since tuned by Paul at Chasers, to be slightly lean (for my protection, stock motor) Damn no AFM, probably would be ok with one. Done bugger all driving between ecu mapping and clutch going the next day to getting r34 box, clutch, tailshaft, brakes n suspension done. Like I said in the thread earlier I 'borrowed' the car back from my mech for the day. Since almost no driving, blocking of filters, new sensors etc cant work out for the life of me why the ecu wants to run the injectors full throttle. Anyways car almost finished for this stage so will reliable and attending more events, more often