Very interesting. In the write up they say it will be LS and LT series heads. Cant see it saying LS1, but it does look nice. I will check out their website later.
2 MAF's would be a bit of an issue, although could make something to join the two signals in, a total value for the single input on the ECU. It looks different, but not a lot of gains over what I already have. Probably good for a twin turbo setup. I would want wide band exhaust sensors on both sides though to make sure one bank isn't running leaner than the other.