Here's a demonstration of the valve spring compressor tool I make. I've had some people ask how it works and thought I would just throw up a video of it in action. First vid is the removal, the second vid is installation. Enjoy :)
http://s1205.photobucket.com/user/Red90Sev/media/D0782E8F-E12C-465C-BA26-11B1E63BA090-32683-000001ECC08B3A3B_zpsca1f904e.mp4.html
http://s1205.photobucket.com/user/Red90Sev/media/1C3D9095-B5EA-4574-95B6-CE9824596D08-8934-00000086FD5376A7_zps4c171408.mp4.html