340 converter

Thanks 70aarcuda ,I did'nt know there could be a combination of weights on the converter.(weight on front face of converter for balancing the engine,weight on out side of converter to balance the converter) I think some where in the rebuild processs the weights for the engine got left off or some thing. All i know right now about the engine is its a 69 340.mp cast crank,x heads,nasty cam,904.Maybe mopar performance can help on engine balance or even the converter .Just know i can not run it like it is. cudalady this might be the same problem you have .Going to keep asking ,looking, hunting till i find out how to fix it.