Sounds to me like it isn't getting enough airflow, and running rich. Usually those high pressure burners have a removable center piece that I like to refer to as the peanut butter cup: You could definitely have corrosion building up that is impeding airflow, so pop those center pieces out and take a look inside.
Personally, I'd spring for the larger size burners. They're a bit more efficient, and not near as loud. However, I couldn't tell you if it is worth the effort to modify the stand.
