Possibly need more fuel? please help

[GSNateGS]

I have a stage 2 Hahn's turbo kit installed on my 98 GS and was wondering if it could be due to a boost leak, or the need of bigger fuel injectors, but the car only pulls w/ the turbo from 3000-3750 RPMs and after that it feels like it's starving for fuel or just dying out. Now if I don't run with boost into the higher RPMs, (engine only) it seems to run fine and still pulls like it should. Any ideas? If you need more info just let me know, i'm new to the tuning scene so any advice would be wonderful. Thanks

 

[Slo2gen]

What fpr do you have? The Cartech/Begi unit that comes with the Hahn kit or something else? I would deff not beat on the car because it sounds like the car is running extremely lean.

 

[GSNateGS]

It's the external Begi that came with it. Is it by chance adjustable, I purchased the car already turboed because I needed a car immediately, but I would've prefered stock so I could do the work, I want to learn.

 

[95dsmgsx95]

What are all the mods on your car?injectors,fuel pump, tuning device,etc? And do a boost leak test too.

 

[GSNateGS]

I'm not sure about the fuel pump or injectors, and I have no tuning device. I bought the car modded, and the injectors are supposed to be bigger, so they're probably no more than 220cc. I spoke with a guy today that said I might also need a bigger fuel rail. Where could I go to get a tune? I'm also doing a boost leak test within the next few days, but the boost stays constant up in higher RPMs but the car just stops pulling if I'm using turbo, it's like it's gasping and it feels like it can't go with what it's being given.