What do you thank $239 turbo?

One of the Turbo's I am using on a 360 would be Instant Boost. There are a few videos in my build thread showing 5.3 SBC on full boost with one of these at around 2500RPM. Mine is 410CI. My thinking was that a Stroker Small Block will make up for some lag down low and not make it dog off boost. My NA 410 had more than plenty down low. Can't imagine how it is going to feel when it comes on boost.
I met a guy at the chassis dyno a few weeks ago with 2 of the same turbo's I am using on a LS7, His boost was all in at 3000RPM, same compression as mine at 9:1 but he is on e85. His heads flow LESS than mine! He made 820HP to the tires at 11PSI and it started to blow thru the converter, so they had to quit. He is replacing his converter and will be going back soon. I will be meeting him there again and do some Video, the car is NASTY on boost! Sounds like a Grocery Getter at Idle "Stock". His goal is 22PSI and over 1250 to the tires. This is a good example of what these Turbo's are capable of!