flowbench info

Hi guys.I was wondering if anybody has any plans,info,web addresses,operating manuals or any other info,technical or not on flowbenches.It can be on pro or home built benches.Has anyone else here built one or own one,if so how successful is it?
I'm interested in building one in the near future so pictures or any of the above info would be appreciated.BTW Ihave already checked out Superflow's website.
Thanks in advance

Check out www.audietech.com. They offer an inexpensive unit that works well. I have built a bench before and getting it to work right takes a lot of effort. If you build an air supply like the one featured on the above website, you will have an easy to use bench for about $800-900. If you build your own, you will spend this much in materials not to mention your time.