Thanks Ray, I've been through every tutorial and forum that I could find online. That's how I was able to properly identify the incorrect piston in the accelerator pump. I didn't know about the linkage adjustment though, I will look into that. I rebuilt a few carbs in my teens, so I'm not too worried about putting the kit into this one.
I did notice that my dizzy octane meter was set all the way to one side. I moved it back to '0' and rotated the whole unit a bit. It seems to have helped, although it still has that air-sucking sound in the carb. It was popping out of the carb a bit too, but that may have been before I had the dizzy firmed up. I will keep on keeping on
