Got my 30 over chevy 400 Long Block delivered today from a busy shop in Maine. It is very close to being a stock rebuilt except for a used Eagle crank and used Vortec Heads. Off the Pallet its the wrong color, metal filings in the water jackets, ok: no big deal.. But it didnt have an External balancer or the flex plate installed as we agreed on. Called the shop and asked whats the deal and they said the just recieved them and will send out to me today. ???? I mentioned that we discussed that the assembly would be balanced as a whole. He says that he has been building motors for 40 years and knows the weights. The 400 external balancer and the flexplate off the shelf is all I need! THis goes against everything I have read here, it should have been balanced as an assembly, right? When I mentioned heavy metels and mallory to be added or removed he didn't get it. We started to argue but I don't have the knowelege, so I cut it short. If he "knows the weights" will I be good installing the off the shelf plate and balancer?? Should I send this giant paperweigh back????? THis blows I need to get this in! What should I do?