Carb rebuild and now some new problems

[sgr60]

I rebuilt my carb this past weekend, and I thought that everything went OK. No extra pieces, and everything seemed to go back on as it came off.

BUT - now I have a new problem with the carb back on the truck. It idles fine, but when I get on the throttle it shudders, and boggs down like it wants to stall and the truck also bucks pretty severely.

I'm sure that this is based on something I did with the carb, I just don't know what...