Installing a stem on a fork with a threadless headset means that you are adjusting the headset at the same time. Unlike a threaded headset and quill stem in which the headset is adjusted to the frame independent of the stem. Look under "headset" on the Park website for directions. Not hard to do, but you need to know what a properly adjusted headset feels like.
Oil is good, grease is better.
2007 Peter Mooney w/S&S couplers/Terry Butterfly
1993 Bridgestone MB-3/Avocet O2 Air 40W
1980 Columbus Frame with 1970 Campy parts
1954 Raleigh 3-speed/Brooks B72