as long as you have the correct balancer, the matching flexplate , or the converter is weighted. you can buy flexplates with universal bolt patterns. check out summit.
That is one thing that they did notice about the converter. It didnt have any weights but it did have some marks that looked like drill holes to remove material from one side that I assume were for balancing. As for the balancer I have a stock 318 one but Im not sure if that will work on a 360.