I removed my supercharger last night and remembered that I wanted to port and polish the intake runners on the manifold. I did it today, it took a total of 5 hours from start to finish. I don't know if I'll see an increase in power, but it sure looks pretty! I really smoothed them out so air will flow better.
I used an adjustable dremel tool with a flex shaft, 60 and 80 grit sand paper rolls, and 120 grit flap wheels. I ran the parts through the dishwasher when I was done for that oh-so-clean look.
Intake Manifold BEFORE (see the small chunks of slag):
Intake Manifold AFTER:
Intake elbow BEFORE:
Intake elbow AFTER:
More pics located here:
http://180customs.net/v-web/gallery/Supercharger-Pics