[evil ution]

Being new...I need to know how cams work...what happends when I retard it 10 degrees and what happends when I advance it 10 degrees...I need to know all that stuff...what how long does it take to put in a cam...and who produces the best cam.

 

[Shiva Chaos]

Cams control the air.
changing the timing alters when the air does in and out.

Regarding the other questions:
http://www.focaljet.com/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=2;t=009630

 

[RiTzBiTz]

http://www.howstuffworks.com/camshaft.htm