need help to tune swift gti 94

please people help me ......i own a swift gti twin cam from the year 1994....and im going to suscribe to the national race series but i need tu make some adjustments to the car so i can keep the pace of the others...please help me...

here are some good sites

http://stedix.com/swiftgti/
http://www.ssgti.com/
http://s-turbo.cjb.net/
at the bottom of the page are some links
http://207.68.162.250/cgi-bin/linkrd?_lang=FR&lah=2c903c121d4c9ed7ba92592742e30c57&lat=1031085696&hm___action=http%3a%2f%2fwww%2echez%2ecom%2ftenfoo t%2fswiftmtl%2ehtm