turbo charging a V8 ?

I have a 1973 400 small block that is in a 1987 ponitac grand prix it's got 9to 1 compresion, HEI ditributer, 202 heads and a holley 4 barrel with headers currently making 350 horse and I'm basicaly in search of more horse power so I would like to add a turbo but the lack on knowledge in this area is a problem and a especialy in the ingnition department so any help would be greatly apprieciated thnx

read this:

http://www.theturboforums.com/turbotech/main.htm

then go here:

http://www.theturboforums.com/smf/index.php?board=20.0