right thought i would get the speedo fixed on my f28 box and do the sump gasket aswell....though i would just take the full exhaust manifold off to make access easier and when i did there was droplets of water in each exhaust port......had a better look with a tourch and found it was a bit worse on number four......the water is not in the oil so owuld u say thead has just blew or the head is gone. By the way i did have a wallace performance steel head gasket on.
Agree with Sid16v. It's bound to just be condensation. When I start my car from cold, run it for 5 minutes, then turn off, steam continues out of the exhaust for another 10 minutes - which is alarming with a stopped engine!!
It's normal, nothing to worry about.