Whats wrong with this 440 combo?

I'd run the Comp XE274H rather than the .509. As for a carb...Edelbrock Thunder AVS 800, Street Avenger 670 VS, or the oldschool 3310 VS Holley would be my choices. On the clutch.. You need the iron bellhousing for the 143 tooth flywheel and 11" clutch, which will not fit your A833OD. No to mention I don't think the A body Z bar for the aluminum bell will alig properly with the iron bell. Not sure on that but I think those are the issues.