Guys,
If you want a really nice pulley setup, I just recently changed my March #1905 pulley setup to the Concept One Serpentine setup. Low mount alt. is perfect in the LS frame, and it is an overdrive waterpump (6" lower and 5" upper). I wasn't having heating problems, but couldn't keep the v-belt setup from slipping during hard acceleration. Took about 30 min. to install in the car. Its the cats meow, little pricey thhough.
http://www.conceptonepulleys.com/fordfe.htm
There are some pics in my gallery of the kit before installation.
Brad W.