Out of fuel? Options

[JMoushon]

So, I retract the statement that the exhaust made huge power, and replace it with this: The exhaust made huge power in the mid-range, but now, boost creep makes me run out of fuel on the top-end. I had to turn my MBC from 19-20 down to 12 just so I can run all the way through second gear without boosting past 20 psi and detonating. If I leave the boost turned up, I have HUGE midrange, ripping tires clear through 2nd, but I can't stay in it past 5500. Setup is: 14b, Walbro 255 with factory wiring, freemods, 3" dp and side exit, MBC. Would a fuel pump rewire flow enough to compensate, or are my injectors maxed? Also, is it the fact that I am running a factory o2 housing that is causing the boost creep? I'm pissed. If I turn the boost down enough to actually get to 7000, my car is slower than it was with a stock dp and 2.5 pressbent. Help!?

[ICGerms]

About the fuel, I'm inclined to think that my injectors (450's) are too small, they have to be close to their limit. Thoughts?

Well, having the 255lph pump surely helps. However, you don't really know what your fuel pressure actually is. If you did know, and could bump it up a bit, that would allow you piece of mind, at least. I doubt that you need larger injectors, though. It IS only a 14b, after all . Anyway, if you port out your O2 housing, and possibly upgrade the wastegate flapper to a 34mm (and port out the wastegate hole some), you "should" be able to run around 17psi (maybe even a l'il more) on that turbo, with those injectors, efficiently.