Joe,
Get yourself a copy of
101 Projects for your Porsche 911. There are loads of great ideas for maintenance and upgrades in there and - if you are like me this is a huge bonus - GREAT pictures showing how everything is done!
There is a companion book called
How to rebuild and modify your Porsche 911 engine that is also quite useful and will probably answer all of your engine modification questions.
Both of these books are available at most Barnes and Noble or Borders bookstores. Or you can get them
here from our host. Welcome to the board.