Thanks for your thoughts Frank. I’m hoping it’s just something simple with the carb.
The first time I did run it a bit longer, and it did start loading up before I unplugged the tank.
Hopefully I can figure it out tomorrow. At least it has potential!

Dale, mine did not have a rubber tip, but not brass either ……..and yes, it does lay horizontal.
Hopefully I can figure it out tomorrow!

Joe, The needle tip wasn’t in the best of shape, and hard to tell what the seat was like.
I found four used needle / seat sets in my stash, but all the wrong thread on the seats,
and wrong needles as well, so I used some valve grinding compound and spun the
needle with my drill, lol. A little crude, but it solved the problem.
Also, the float tang was out of whack. The “carb” assembly line inspector
should be docked!
I was befuddled for a while trying to do a “blow test” with the carb inverted, testing
if the needle was seating, until I realized the glass fuel bowl needs to be in place!
Will try to order a new needle and seat.

While I had no more gas blowing out the carb vent while running it in the barrel,
every once in a while it was getting into some “lean sneezing” fits.
I really can’t tune that big of a motor in my test barrel.
After I pulled the motor out of the barrel, for some reason I thought to check the
six cylinder to crankcase nuts……. all were loose……. strange, as I never had
the cylinder off.
Not sure if that could be my “lean sneeze” problem or not.
Hope to do a lake test this week and see what happens.

There’s a barrel test video in “Current Projects”