Since sending the original message I have gone full circle. I have had all kinds of advice from "replacing the carburator with a Chapman carb to changing to synthetic fuel to adjusting and re adjusting the high speed and low speed needle valves to changing the glow plug (2 or 3 times at least) I still have the same problem.. that is , basically I can run the engine on a test stand or on the plane and get it to the right richness by the pinch test but 8 out of 10 times after the taxi I try to accelerate and it stall on the runway . Is there a place I can send it for setup and testing? If so how long will it take and how much will it cost? Any help will be appreciated.

Cheers!

Gene.