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Well I finally got to tune my car on the dyno with a wideband O2 sensor.... The guys at Elite Autosports in Mpls did a great job of dialing it in with the AFC. If I was tweaking the knobs it would have taken a lot longer... heh heh. Anyway, once I got the fuel set, I started turning the boost up 2 psi per pull. At 25psi it made 511rwhp and 497 torque. I turned the boost to 27psi but it didn't make any more hp.... so I've got some sort of bottleneck there, since this turbo has made much more hp that this. Anyway, I was still happy with that.... so I turned the boost back down to 25psi and turned on the nitrous (75 shot). It made 602 rwhp.... that was cool. He didn't start sampling that run til 5500 rpm so the torque was only 501. All in all, it was a good time.