It's me again Dave, I am trying to get the 140L to run with the 20% heli fuel. starting with the high speed needle at 2 1/2 turns out and the low speed 1 1/2 like the book says First start went good until it dies out at high throttle, thought it was too rich, lot of smoke, but leaning it did not seem to help at first but I stayed with it, lean it out a few clicks at a time and reduce throttle if it starts to choke out, go back to high throttle and try again, have done this for a couple of tanks and now have the high speed needle at about 2 turns out, have not touched the low speed, it idles at 2000 and goes to full throttle nicely. So far I am only getting a little more than 6000 at top end but it might not be leaned out enough yet, swinging a 18X8 prop to get around the cowl of my 1/4 Mister Mulligan. How am I doing?