Dyno tuning fuel problems

Was at Pro-Motion from 1-7ish. Laptop didn't want to work and kept crashing. Basically I only made 373whp on about 19psi. Couldn't go higher because the car started to go lean for some fuel related reason. The injectors were only at 73% duty cycle. Don't know what fuel problem is causing it to go lean at the top end. I couldve hit 400, maybe more. It did the same when I had stage 3. Could it be the fuel pressure reg? Thinking maybe a fuel return line kit + reg will solve it? Suggestions? I'm using the walbro 255 pump as well. When I had the stage 3 pump, it was doing the same thing. But here are vids and dyno sheet. Pro-Motion was very helpful and courteous. They even let my car finish after closing hours and there was another customer who was suppose to get dynoed but couldn't bc of mine. AND MY BOV DOESN'T WORK ANYMORE. I checked the hoses and lines, everything is still connected. HKS SSQV blown??

http://videos.streetfire.net/video/c988cdc2-a429-4b47-a7fe-994e001735f2.htm

http://videos.streetfire.net/video/ddfc6c2d-476e-4450-9cd2-994e0019880e.htm

http://videos.streetfire.net/video/b4367e90-927a-4742-a630-994e001ae58d.htm