For all the HEMI power nuts out there, there's a great 144-page book called High-Performance New Hemi Builders Guide 2003-Present. It covers not only engine building and specs for the 5.7 and 6.1, but supercharging, turbo, heads, cams, tuning and other power related mods. We have them in stock if you'd like to get a copy. You can order here: http://www.bmcspeedshop.com/product_p/sad-sa132.htm Thanks, Lisa.