Actually, there is a scarcity of Aussie LPG forums! That's why I'm here. Lots more LR experience here, too. LR sell about as many vehicles (total)in a year as Toyota sell 4WDs in a month here. (Where my daughter lived, the nearest LR dealer was interstate and 1600 km away. The one in the capital in her state was 2500km away.)
The people who built my engine are both LPG installers and LR engine specialists. They knew I was having LPG fitted - in fact they drilled and tapped the inlet manifold ready for the nozzles whilst they wre doing the build.
Anyway, try as I might, I couldn't get the flaming thing to pink on either petrol or LPG.
The next time I'm down at their place, I'll ask.