I came very close to buying one of the complete kits off ebay a couple of years ago and had planned on a very healthy stroker buildup with it. Once I got into the facts of it though I determined that the unit does not flow much air IF your planning on doing much modifying aside from the blower. I think it would be great for a 12 sec ride but you will hit a "brick wall" with airflow if you want to go much more. I chose to go naturally aspirated as my 416 with W2's, .600 solid cam and tti's would have seen little if any gain for the money spent and I wanted to have room to grow for future modifications.
The moral to my story is think about your future performance goals before jumping aboard.
Good luck with whatever you do though
Rick