hey guys,
I have a 92 GX liberty with a 94 Wrx engine!

From the day i got my car it's has had a flat spot between 3,000-5,000rpm but after that hits like a power band and takes off! i will be taking off and it hits into boost then cuts and is like sluggish untill after 5,000 rpms anyone had this problem before...?

I was told it could be my fuel pump! so i replaced it for a bigger walbro one then seeing it already had a bosch after market fuel pump!

Another thing is that when i flaw my car, my injector dutie on my power fc goes up to 100% but this isn't all the time? I have stock injectors, so mayb i need to upgrade to 550cc?

little help guys!