which head for the 4.6L?

[ac97gt]

thanks, you're response is just what i wanted to hear. i do plan on going for a blower eventually *if* i ever get the money. i might have a new car by then, but i do want to set it up right in case i ever want to. the FMS intake/heads sound good. like i said i can only get one or the other then save and get the other, i wanted to get heads first but should i get intake first? what kind of hp numbers can i expect to add with just heads? with just intake? with both?