Yes I am using the muffler pressure per the tank's instructions. It runs fine both 45° up as well as 45° down with a full tank, at idle and at full throttle. New plug didn't help. Idle mixture properly adjusted.

No wind yet - The eerie calm before the storm. I'm 15 miles from Galveston Island on the Bay and we're gonna get wet! Hoping for no tree limbs on the roof!

Dan