Gonna be real difficult to do without cutting/trimming and/or deforming the shield.
Your best approach will be to remove the air cleaner, the rear motor hangers, and loosen and re position the carbs.
I am not sure why you took it out, as when removing the carb I do not remove the shield, just the left side motor hanger.
Good luck.
I removed it because the carbs were hanging on it, there is not a problem with removing it, the problem is forgetting to put it back..