Andrew it sounds like you might have low fuel pressure or Icp then.
When you add fuel boost levels should come up.
Most guys see 28-32 psi with the ww2 and tuning.
Now subtract 5 psi or so from the max reading to get what your max should be with the 1.0 turbine housing
99.5 f250 7.3 4x4- 277k FF 160/30, Hydra w/SDK Tunes, S&B CAI, 4" Exhaust, Van turbo w/Riffraff Billet wheel, Autometer Gauges, Built Trans, Trucool Max, 08 Tow Mirrors.
Dads-2000 f250 7.3 4x4- 118k K&N Intake w/Amsoil Filter, 4" Exhaust, Autometer Gauges, Superchip 1705 (Tow Safe), BD Billet Wheel, TruCool Max, 08 Tow Mirrors.