Yeah, I understand what everyone is saying about it being a long draw for the fuel etc... But at the same time if that IS the problem I'm experiencing it doesn't explain why it was working perfect for the first several flights, then just suddenly stopped. It doesn't make sense that it would "suddenly" require a pump to be able to draw fuel that far. I'm gonna swap the engine with another bird and see if the problem stays or follows... If it stays I'm gonna try a new fuel tank with new lines and try it up next to the firewall for testing... If it's still good, then I'm gonna put it back into normal position and see what happens....

I did try the new needle valve adjustments today and with no luck.. the "book" settings were WAY to rich... it's set now running very rich with a small bog in the transition to full throttle, but nothing major... Though i'll wanna lean it out a little more once this problem is solved..

I'll keep everyone posted on tommorows "swapping" and let you know the results...