My turbo is a ways smaller than a GT35 but I can tell you going from 98 to E85 made stuff all difference to response. If anything it is slighlty worse.
What is better is just how much torque the car makes, but the sensation of when it boosts does not change.
I think the GT35 is simply too big a turbo for any 2L unless you are going to have valve springs and oiling, PS and water pump pullys all geared so that you can pull 9,000rpm as the thing is unlikely to start making +250rwkws until after 5,500rpm.
Also, since you are looking at running a gob smack of boost I think you are better of going for a smaller turbine and compressor and driving it harder with a larger A/R turbine housing.Whilst the GT35 has a good sized turbine, pushing that air through a 0.63 housing may result in a peaky powerband that falls over up top. Better to go a smaller turbone and compressor with a larger A/R turbone for a similar power level but generally better torque band and better cylinder filling/exhausting
If you are going to run that big a turbo I also suggest you run a plenum. They seem to genreally further hurt response but they do tend to help the power in the high rpm range over 7,000rpm