Folks - the first tech session is this next meeting on the 6th of May. A lof of what John will be stating will be related to the differences between fuels between AUS and the USA. This has been the cause of many a tuning headache, as cars that are 'tuned to spec' aren't really tuned at all - as their specs are based on US fuels, not ours.
John proved this theory to me by re-tuning a couple of my cars (which he used as guinea pigs) using a mobile 5-gas analyser. Jets, Float levels, Air Bleeds, timing etc all needed a tweak - but most importantly was the re-baselining of settings required for our fuels.
The results were impressive - my NOx, HC, CO, CO2 and O2 levels were all now more 'right' than they had ever been. For an old musclecar, my Mach puts out VERY low emissions with no loss in power or driveability.
The cars now idle smoothly and pull hard when you squeeze on the trigger. Its amazing what a 5-gas analyser, a good timing light and some commonsense can deliver.