Well, a pound of carapils will do it! I don't use carapils if I'm using a crystal malt, since that also contributes to body and mouthfeel. If a beer will be "thin" or without any head, I add maybe .5 pound of carapils, but it's not something I use very often at all.
Aside from the carapils, the recipe looks good. Try it again with either no carapils or .25 pound at most, and I bet you'll be happier.