It's about 8.8 to 1 comp, and it's a S400 75 mm (T6 flange). I think what he ment to say is A/A coolers are overrated, unless you run on the salt...
Nate
p.s. Here is a video of a similar combo. He's running 351 inchs instead of 396, but with the same turbo. His two step wasn't working in that video, so it took a little longer to get into boost.