Thanks for replying!
I looked in the Calibre folder and couldn't find a css file that was providing the default values. I also looked at the individule files in the epub package and although there were 3 css files in there, 0 had no font info, 1, was empty and 3 had some values for body, but no font specifications. I couldn't find any values for the title.
Just *where* is Calibre picking up these default values?

They have to come from somewhere because the title is changed to a larger font and the body is given a times-roman style in the conversion before it is transferred to the 505.
If I use the the -override option, what would the layout of my own css file be? How would I name the elements?
Thanks,
Paul