4.6 liter help

I hope that someone can help me out. About a year ago now my parents bought a 2007 Ford F-150, and unfortunately due to some missunderstanding and their budget at the time they got a 4.6 liter engine instead of a 5.4 liter. In the future i have the oppurtunity to own the truck and while the 4.6 is brisky and revs high it just dosent have the same kick or potential as the 5.4 liter, i was wanted to know anyone knows of a company that makes a supercharger for a 4.6 liter. I have been looking everywhere and have come up with nothing. Thanks for takeing the time to read this and get back to me as soon as possible.  

As far as I know, nobody makes one right now specifically for the '07 4.6, but I'm sure one is in development, as it's a very common engine. I would check with:

Allen Engine Development

Whipple Superchargers

Magnacharger

I think the bigger issue is probably engine management than hardware. Hope this helps.  

thank you very much, I will be shure to check them out.