The engine is designed for serious horsepower, so there has to be a fair number of compromises along the way with the build to ensure it will handle what we plan to do with it. One of those compromises is response. There are many factors, but some of them are comp ratio, camshaft size, camgear tuning, exhaust manifold sizing, the size of the turbo etc. We will be compensating for this with a shot of NOS, to get the car onto boost, hopefully around the 5500rpm mark. That would make the setup a lot more enjoyable, although it is pretty freakin cool when it comes on! BTW, there is no lag between gears. It falls back onto full boost.