Sharfted Groundhog, I fly, and farrari:
Thankyou very much for your replies. The reason I ask is because our Duke is giving high fuel flows, almost identical to the situation reported by "I fly".
Other research via the net, including the page pointed out by farrari, revealed 2 other Duke owners who also get the high fuel flow.
Incredible that the fuel flow should be 30% above the book figure, but that is appearing more normal, the more research I do.
Thanks again,
Tom