See my dyno plots in my sig. ITB's are all about midrange, and as such, I gained 41 rwhp by 6400 rpms. They aren't meant for peak power, but to maximize your motor, they're the end all of N/A tuning.

From a dig, I can wreck just about any all motor s2k out there, and even give some SC'd cars a run for their money. I'm going to take it back to the 1320 soon and see what it'll do now.