When I first stated it up yesterday, I was getting a lot of surging in the mid and high ranges indicating an air leak. This eventually improved to barely noticeable, like a transplant patient becoming acclimated to her new appendage.
Today, after I buttoned everything up, I think it ran even better. Slower, smoother idle and no surging at all. I think I may not have had the needle valve packing tight enough – as I was operating them knob-less and they felt OK. Anyway, I think it runs great now.
