Cheers heaps for the info mrsoopra, did you get a noticeable performance increase changing to 86kw 4age cams? And how much did they cost you? Did you put them in yourself?
About the white smoke, i get it too. My research has lead me to the conclusion that my valve stem seals are gone/going. If you still get good power at high rpm then rest assure its probably not your rings. I think after a hard night thrashing (3am 3Celcius) after you park it, the oil leaks through valves or something (seals) into chamber.