Thanks Spud, good advice.
I think I have the hoses all right. I was very careful to make sure that the vent was seperated, (put a piece of copper tubing in it) and connected from the main clunk, to one of those external fill valves, to a filter, then to the carb (OS 50 SX ringed) Then I pulled the tube from the vent and ran that to the muffler nipple. The lines are a little long, is my main concern. But as I said, I will see what happens Friday. This build (read assemble) has been a bear for me. I flew years and years ago and was doing pretty well way back in the day. Picked up an electric to get some stick time and it all came back very quickly. second flight was sliding up to my feet in the park. I just have not built anything but high powered rockets for a gajillion years. It will be a wild ride I am sure.
Tom