Yea I was reading an article somewhere (wasn't the dulcich series) but this guy was pretty adamant about keeping the smaller valves to keep the velocity up. I did a good bit of research on the heads and the water passages and such, looked at more images and forum threads than I care to think of. I've basically only gotten rid of the mass behind the guide boss and removed the guide boss material, blended the bowls, and just barely smoothed the short turn transition.
