building a 383 Stroker with Factory parts help needed

For what it is worth about 440source.com, I just got my 512 stroker kit for my 440 block and I got my engine machined to fit it. When the performance shop put weighed everything for bobweights and tested the crank, it was great. Almost perfectly balanced. They could not believe how well balanced it was. Now I have everything and will begin the assembly this weekend.