Alright I know there's lots of topics on this but I'm going to go ahead and put what I got and where I'm at. Got a 421 serval no port work done . 35mm pwk 165 mains, 50 pilot, cel needle middle clip and it's starving on fuel. It'll shut off on me if I open it up. I'm at sea level and it's 70 here.if anymore info is needed let me know. Thanks guys