Rispoli 23, like dls322 says, there are a lot of liars. Unfortunately that doesn't exclude manufacturers. As far as magazines go, they wouldn't stay in business very long if they told you in their articles that the parts they tested made no power. They rely on advertising dollars from the manufactures whose products they test. Between the two of them they will, quite often, make sure to get the results they are looking for.
Your intake manifold is, to put it delicately, not helping. You should either switch back to PI or go with one of the better aftermarket manifolds. Edelbrock, Trick Flow, and Fox Lake have all put serious R&D into their designs, and they are all tailored for very specific power bands and setups. The Typhoon is nothing but a poorly reconstructed PI manifold made of aluminum. The fact that it is made of aluminum is its weakness because it gets heat soaked VERY quickly. Once this occurs, you are losing out the the PI (composite material so heat soak isn't an issue) at all levels.
The only mods in your sig actually contributing power are your cams, plenum, mid pipe, and tune. Unfortunately you have fallen prey to a couple of common mods that make great claimed power to cost ratios, but no actual power. If you could actually get 15HP for a CAI or throttlebody don't you think ford would outsource that part to that manufacturer? The sad truth is (or is it really sad) that at anything close to stock power levels, the factory components are actually not costing you any power. Throttle bodies, CAI, and MAF meters will have ZERO benefit for you until you deal with the biggest restriction in your system - your cylinder heads. After that your cams are the next biggest restriction, followed by a toss up between the intake manifold and the exhaust manifolds.
Think of your engine as a highway, the part of the highway your cylinder heads are is (right now) two lane. Your intake tract which comes before is four lane, and your exhaust which comes after is four lane also. The traffic flowing down the highway is the airflow your system can process. If you can pass more traffic then you make more power. Adding CAI, TB, and MAF is like widening that first part of the highway to six lanes. Does it really help you move more cars through? Not in the slightest.
You have to work on the most restrictive parts to increase overall air flow. Once you do then you work on the next most restrictive item. And so on and so forth. I hope this helps, not trying to bash you or anyone else.