Ok, so I got bored and pulled the throttle body. It wasn't too bad, just a few bolts and the cable linkage, came out rather easy. Here is a picture with it out...


Don't tell my wife I used her towel...lol

This is the ridge that I filed down to help smooth out the airflow....


I just filed the ridge out all the way around the inlet and hit it with some wet 100 grit sandpaper.


Next I continued sanding with wet 220 grit sandpaper. As you can see it is getting pretty smooth.


At that point it is pretty darn smooth and leveled. I wanted to get to 1000 grit sandpaper, followed by some aluminum polishing compound. (but didn't have any handy) If my dremel didn't break a while back, I would have used that instead of filing. It did take longer, but I did find that with using the file, I had more control over smoothing out that ridge.

I haven't driven it yet, but I did notice the throttle responded somewhat better. I have the battery disconnected at the moment to clear the computer. (don't know if this is needed or not) I'll post a followup later on today after I take it WOT (wide open throttle)