I have a Ritchey stem on my road bike. It is 73 which means you get +/- 17 degress depending on which side you mount it. Generally Ritchey makes either 73 or 84 degree stems. 73/84 may indicate that a certain stem comes in 73 OR 84. With 84 you will get +/- 6 degrees of rise. Ritchey and others also make an adjustable stem which you may find helpful.

Hope this helps - Joel