Thanks for the link cw5billwade. There is a whole slew of info over there from guys that have either done or plan to do 5.4 swaps in their mustangs that is applicable to my build, not only the intake but just about any other info on the engine. There's so much though. I've just began to get it read, probably over a solid 24 hr days worth of reading. I'm trying to read it all so I don't ask any redundant questions but man its going to take awhile to cover it all. There's one thread over there thats over 200 PAGES long, and has like 8500 REPLIES, devoted specifically to 5.4 mustang swaps and engine mods to the 5.4. I gotta get busy, I'm nowhere even near through this thread. Thanks for the link. Anybody else have any experience with the hardballer on their 4.6's? I could email HPS, but I would rather have feedback from somebody who has either sucessfully or unsucessfully used a product firsthand rather than take a manufacturers word for it. I'm just trying to get some feedback on the quality and workmanship of the HPS piece and determine its suitability for what I'm trying to do, and I hear that their 4.6 manifold is damn near identical to the 5.4 manifold with a few changes specific to make it work on the 5.4 without spacers. Also...while I'm on this topic, if I do go this route, this intake accepts standard throttle body elbows like on the 4.6 Mustang. Anybody have a recommendation for a good aftermarket 4.6 elbow thats responsive low and midrange while retaining EGR or should I try to pick up a used stock elbow off of a Mustang? Thanks.