That’s the way I originally had it installed, in top which makes choke difficult but would seem to allow more flow. Now I’m going to have to reinstall . See it’s your fault with dat choke stuff😀. I changed it to make choke work.US carb sent me a new snorkel in two days. Noticed the difference right away even in the stiffness of the main body and the straightness of the snorkel ends. Easy to blow through on both sides. Installed tonight, 8 turns and it is running well. Will do a load test tonight or tomorrow to fine tune it.
Hopefully the leak in the propane was your issue.
Couple of things that I dials that I found helpful. I installed the snorkel with the tips at the top of the carb. Not sure that the Choke will work but don’t care. I removed the Carberator and assembled off of the generator. This allowed me to open up the throttle to check the positioning. I had my wife help me hold the assemble together as I secured it to the generator. Keeping my fingers crossed for you my friend!