I'd rest both needles to factory settings and retune from there...also by running out of gas do you mean your fuel line to the carb is totally dry? Also just a suggestion not to make you sound dumb or anything but mistakes happen are you sure you didn't mix up the fuel lines when you changed them? Also if you removed the carb check around it for airleaks...any little airleak can cause it to not pull fuel properly. It's probably something simple your just overlooking...we all do it at times...just don't get frustrated at it...