93 90cs quattro sport

[Frank and Mary Avantaggio]

 hi all,
this is my first letter to the q list and i am a new subscriber. i just
recently purchased a 90cs sport quattro and love it. i am planning  on
modifying the car down the line and was wondering if anyone could give me
any advice. i know the 12v V6 is a little limited as far as engine mods go,
but any advice, past experience or thoughts will help.
           thanks.
   -Chirs