hey guys thanks for everybodys input, i found out that i was blowing some smoke every tiime i put it in 4wd low, [the original symtems showed up after a weekend of 4wding] but on a happy note the smoke has disappeared since i fitted a snorkel and the 80 series air box, i've also now fitted a set of redback extractors and a 2.5'' stainless exhaust with high flow stainless muffler, the qd32 has been transformed, more takeoff power, goes uphill easier and now sits on 2500 rpm @ 100km/hr down from 2750 rpm not to bad for a n/a truck thats done 245000km. i would like to say a big thankyou to this forum and it's members for the ideas and advice
thanks doug