check out the sponsor banner at the top of the page. osakajdmmotors.com or something. But you can get an H22 out of a Prelude in a junk yard. try ebay too.

edit: swapping a motor isn't easy, especially with all the complex wiring that will come with it. In general, making a slow car fast isn't easy. But it's something that can be done yourself if you're willing to spend the time to learn, have a buddy to help you and plunk down the change for good service manuals and tools.