intake manifold photo

[Chupacabra]

Richard,
How exactly is this intake designed/tuned(in terms of a system)? Obviously it was designed and engineered as part of an entire system (likely camshafts included with LTH). I can't see taking the time and energy designing something like this unless it was part of a "bigger picture/system" which included some interior motor work etc. So...before anybody gets too excited about the manifold, what type of gains might one see using only say, this intake plenum and a stock exhaust with zero motor work? What I am trying to get at is....it's very likely that this is only a little piece of something that is much bigger and more expensive so some may want to strap on their seatbelts to know that the whole system is thousands, excluding the mechanical work (if they cant' do it themselves). Not tyring to be a "downer" at all...just want to get a bit of a clearer picture.