^yeah Griz, I'm curious also. I'm wondering if the car had a cooling system issue prior to the dyno runs.
As far as the head gasket you could do a compression test.
The Focus is a different beast when it comes to tuning. You may want to consider going to a tuner with experience in tuning the Focus.
FSWerks stg2 w/ water/meth; Cossie intake.
Massive Speed stg 2 cams in the works....