Tunnel port/ high riser hybrid design but with a little twist. A little twist? as in TFS twisted wedge design? This has me very excited. For me this is what has been missing for the FE motor some kick butt cylinder heads. My hats off to you Jay. I have a small Tool and die shop and sometimes deal with Betz industries for casting a few of my tools and know what it takes for design work and the casting it self. Time and pricing gets up there. again my hats off to you. can't wait.