ORIGINAL: yetti831
Okay, I will turn it out a bit, but it's still a little slugish to full throttle. Lean the low -speed out a bit?
No, it sounds like you had it right the first time...
Put it back to how you had it.
it could well be that because the engine is new, it is not tolerating the lack of muffler pressure, or that there is just enough restriction on you fuel lines that prevents the carb from being able to pull in fuel with normal air pressure...
Also your elevation could come into play... I fly at about 200' above sea level.