Im glad to see this thread revived too, currently i'm extremely busy with my CNC shop and getting a 671 blower finished
http://www.cnczone.com/forums/i_c_en...ercharger.html
But i have been working on my design and have most of it draw up and ready for a single cylinder. Once i have time, i will be printing out a half scale from out 3D printer just as a working concept then cut a working prototype out of 6061-T6 aluminum billet and 4140 steel. Once i get a working single i think i will just go straight for a V8 head conversion on an existing engine.
Are you refering to something like this?