After seeing reference to my installation, thought I'd better give an update.
First the set up.
Standard engine, 10.5 to 1 CR,(rope seal at the back). SD1 heads, front cover and distributor.
3.9 cam.
1995 Range Rover 14CUX EFi system. Except plenum ( no 3.9 on the top).
Still to connect are the neutral/park wire and the speed signal.
Not connected because the n/p wire needs a relay to invert the signal and the speed signal is too low for the ECU.
When first used was disappointing, prone to flooding on start up and poor fuel consumption. ( 10MPG)
Since then I have reprogrammed a chip increase the tick over to 700rpm and 800rpm in drive or reverse( when the n/p wire is connected)
and reduce the fuelling by 10% across the board in maps 2 and 5. Currently running map 5 and have added llambda sensors so with a change of
tune resistor I am going to run map 5. ( UK cat map).
Found a suspect spark plug so fitted a new set (only 1000miles) and last fill up was 15 MPG.
With the new Gaz shocks the drive is much better. ( it puts a smile on my face anyway).
As it has only done "local" journeys to date I don't think this is representative.
Thinking of having the injectors cleaned and putting it on a rolling road.
Will keep you updated.
Jim.