Balancing Engine

I assume you're using the OEM balancer up front?

What's out back - converter with proper 360 weights welded on or a B&M flexplate for the early/original 360 external balance?

I was never sure how they balance a 360 rotating assembly if using a converter with the welded on weights. Does it get bolted on? I always used a B&M flexplate or internally balanced my 360's.