On looking for the manifolds they are worth only what someone is going to pay for them. I have see them listed from $200-$5000 over the years but.... These thing are a real soft spot as they really do not flow well and any header will increase the performance. We all are looking for originality though. I'd be interested for a couple of grand in just the drivers side one. This is the only part that I am really looking for to complete my car.
It is kind of funny that the one M code Cuda I paid $1550 for back in 84. I still have the car and and just got it out of the barn after 26 years. The guy said he wanted $100 extra for the engine block, blown up and cracked, and exhaust manifolds.... I kick myself now for that. We all had stores like that.
