1) Should be PNP. Although, based on the past 4 years of people in UK and Australia, with similar set-ups, there were issues with using the proper actuators.
There were issues whether to use modified OEM ones, or aftermarket ones designed to better fit the new turbos. We plan on the latter. That's why these are in "test". Only real way of determining is to see what happens once installed.
IMO, no issues. I would expect about a 100-150 rpm lag way down low. Even with the ones I have now, I see a "slight" difference. The little "dip" in the seq curve at transition becomes more pronounced tho.
2) From what I have heard so far, I would expect 450-460 on pump gas at 18psi. Although we are thinking that 20psi on pump still is doable. These are WAY more efficient, heat producing wise. But then again, it is hard to determine what the ECU will do at 20psi. As far as fuel, these for sure will approach the limits of a stock fuel system. Maybe a dual feed, and some minor stock tweaks may make things OK. But I will tell you, that these can be pushed, maybe with a shot, close to 700 whp. IMO, I wouldnt do it, but they are capable. Just like hitting 24psi on stockers, maybe not efficient 700, but non the less capable.