B+M makes a weighted flex plate for external balanced engines so you can use a neutral balanced converter. It's a lot easier to use than trying to get the weights welded on in the proper place and proper weight. The last one I bought was several years ago from Summit Racing. At the time I paid $100, they're probably $150 now.
I saw this flexplate at mancini.
So, to clarify, you would use this flexplate and that eliminates a need for a welded weight on the converter, correct?
eightlitermopar