has a forum. At the top of the forum page is a "Setup Search" section. Click on that and select the fk'05 kit and asphalt and rubber options and it will show you all the setups that people have entered for those conditions. Joel_Myrberg (Xray team driver) has one that was for the European Championship 2005 that he entered earlier this month. That should give you a good starting point.
I only run carpet so I couldn't help you much. Contact "TeamGP" here on rctech and he may be able to give you specific help once you get a good starting setup.