tbh i always found it abit quiet at the bottom of the range (could be just used to turbo though) but i wouldnt call it a flat spot such as a fueling issue or alike, just abit lifeless till 4000rpm
 
thats what ppl have been telling me but its always been like it (before the cam, which is only a mild one anyway) i was told that they run lean up untill3-4k but that was of a pikey so dont know if it was true
 
mine shoots after about 4k revs, and is happy till the end but it doesnt have any pull before then...

OH and i just got a BMC CDA its awesome, gives it a little extra something and sounds the balls


Thought yours was a valver mate?

I had a blitz cone filter on mine, did sound awesome but since taking it off the car starts better......... so its staying off.
 
if i plant my foot around 1500rpm theres a little lag, almost as if its winding up, by the time its at 2500 ish my zorst makes a rite noise and it starts moving :D, wether its an ignition or a fueling issue i dont know?