If you go into the SeverProfiles directory in MetaAssets, one of the gf files (which open up in Notepad) should have the numbers for AI ship production. As for making them more aggressive, I'm not sure how you'd do this.
Edit - 'spose I ought to have asked this - SFC1, SFC2/OP, or SFC3? It may be slightly different for SFC3, I'm not sure.