Easiest way to get the springs/valves off head.

[Shane@DBPerformance]

Here are instructions on how to mod a normal valve spring compressor that you find at a place like Sears to work on a DSM head. http://www.vfaq.com/mods/Valvespring-compressor.html The head has to be off the car to use one like this. You can buy ones that allow you to do it with the head still on the car though.