I've personally never been on the streets, but my friends have a couple of times. You are correct about having some slow corners and you probably will be right around 100 or so. As far as setup goes I'd probably recommend going with the Konis 1/4-1/2 turn up from soft and the rears I'd say 1/2-3/4's of a turn up.

What type of tires are you running? A good gestimate on pressures would probably be 45-46psi front and rears I'd say 36-38psi.

Take it out like this the first time and see how it feels. Then adjust from there. If you are pushing too much through the corners soften up the Konis or let a little pressure out of the front tires (I'd say Konis first). If it is oversteering too much put so more air in the rears and soften the rear konis a touch (I highly doubt this will be a problem).

2004 Focus PZEV 2.3L - KW sport suspension, SP camber plates, Eibach front swaybar, FS intake, FS Stealth exhaust, 3.82 Final, Torsen ATB, Prothane MM insert, E1 CSVT wheels 1/4 mile - 15.201@89.4mph