Hi Andy,

Thanks for the info, that is something I never thought of it would be interesting to see what difference it would make. I don't think compression has anything to do with fuel draw, but you never know until we give it a try.

I'm leaning towards making the exhaust nipple bigger by one, and perhaps two drill sizes if possible, to cure the problem. Also, if its fuel turbulance as you suspect, drilling the brass insert hole to be directly in line with the fuel intake nipple may help as well.

I'm curious as to what you will find. Hope you get a good flying day in!

Fly4Fun,

Wayne