Slant 6 Aluminum Performance Head

Unless it's COMPLETELY redesigned, as in a cross flow, OR SOMEHOW move the valves around for better port configuration, I don't think there's a lot of room for improvement, other than simply being made out of lighter aluminum. The ports are already the limiting factor, and unless they are "moved around" for optimum placement, there's not much to gain, IMO. Problem is, there ain't a lot of room "THERE". This dream pops up about every couple of years, so we're used to it.