Rollertest. On the wheels 67 horsepower and 115Nm. Where i expected around 92Hp. For both Petrol, and LPG (autogas) result was same - but on LPG the run was much more regular. It seems the 2 carburettors are not in sync with each other, resulting in a rather "bumpy" curve to the 67hp. At the same time, the mixture is too lean.