I definitely recommend the Gotts mod. It probably wont give you extra power on the low end rpms but it does help out in the upper rpms.
Here is a link that'll give you a bunch of ideas.
http://forum.gopowerhungry.com/2004-...-pictures.html
On the second to last page I attatched some pictures of how I did my intake.
We basically have the same truck except mine is 2wd.