How do you take a supercharger pulley out?

This all depends on what type of supercharger it is. If you have an Eaton supercharger it is possible that it might be a pressed on pulley. If this is the case then you will need a pulley puller. If the supercharger is a Vortech, Paxton, or ProCharger they all use key ways. So all you need to do is take the bolt off and the pulley might come off. Some times the pulley will not slide off so a pulley puller will work. Or you can heat up the shaft which will cause the pulley to expand and it will then slide right off. DO NOT use a screw driver or any force to pry it off. This can cause damage to the bearings.