Tuning for higher base fuel pressure

[Pushit2.0]

It could be, I would check your fuel pressure under boost and your wide band at the same time. Does the car run like its going lean and into knock retard?

As said above if you raise your base fuel pressure and your fuel pressure drops with boost/rpm or you injector duty cycle stays high you might be on a 2+ front wall, and that is no fun, ask the Axis.

~John