Carbed Magnum parts list?

I'm not sure what I need to do...
"One thing that hasn't been mentioned yet is the flex plate issue. If you have an automatic, you'll need to swap to a Magnum style flex plate"
OK, but what if I plan on connecting to an A-833 that was connected to a 1969 340?
You need a 5.9 Magnum weighted flywheel, for a carb swap you don't necessarily need a truck fly and bellhousing.