Yes its steam pipe
I would let it go for 400
I needs a couple of pipes welding on it and then sand blastered , I was going to machine the manifold to head surface as well
If i finish it then im going to be asking 900 for it
Ok your going to think this is rough but I will tell you anyway
When i was working on alfas we would have the same issue and just give the shafts a tweak
It worked fine and there was never an issue
this was common on brand new alfas so I would just do that if i was you