sr lack of power/acceleration below 3500 rpm

[abaron13]

Ok, this is what I'm running:
-sr20det redtop
-fmic
-tubular manifold and full 3" exhaust
-greddy rs bov
-255lph fuel pump

My problem is when accelerating from a stop I have almost no power until I hit around 3500 rpm and then I hit boost and have enough power to smoke the tires. It's like this in every single gear: no power until 3500, and then it's like someone flips a switch and I have all the power I need. What could cause this lack of power? It's really getting annoying, especially in traffic. Doe anyone have a solution, or maybe could point me in the right direction??