ok so i have a black 95 420a eclipse...
the motor is less the 500 miles old...here is a lil background...

Engine Internals:
Eagle rods, JE 8.8:1 pistons,re-enforced main girdle for higher RPM, Cometic .20 MLS HG

Engine Management:
Hahn portfueler, MSD BTM (boost timing masters), Innovate LC-1 wideband w/ DB gauge, AutoMeter blackout Gauges: Vac/ Boost (20psi), Oil Pressure (elecrtical)

Bolt-on Modifications:
Turbonetics t3/t4e 50 trim,hahn racecraft inter-cooler and piping kit, ported 55mm TB, hahn portfueler stage 5, twin fuel rail running stock inj. as primary and 48lb inj. secondary, Blocked off EGR, Walbro 255 lph HP fuel pump, aeromotive 1:1 fuel reg., custom down pipe, Turbonetics turbo manifold, turbonetics Evolution 44mm wastegate, turbo XS MBC, Greddy type-S BOV, NGK BKR7E-11 plugs, MSD tach adapter (currently running 20psi)

Drivetrain Modifications:
SBC stage 3 clutch

Suspension Modifications:
HP Blue shocks, tokiko springs, 18" ADR rims

Now with all that being said, i am having one MAJOR issue...no matter what i do the car goes lean under a good load... 1st and 2nd gear will pull hard all the way through, 3rd will run up to bout 4500-5500rpm in the 10.8-11.4 rich area (AFR) and then BOOM "22.4 LEAN" This does not matter if i am at 8psi boost 0r 20psi... it will do the same thing... i feel it fall on its face and run like crap and as that happens it drops off to lean!
i so far have put new fuel pump, regulator, fuel rails and injectors, lines and filter in, none of that worked so i tried running couple extra ground wires (engine block to chass.) didnt change, so i tried the ecu and all the parts out of my red car that is the same build (even the full intake mani with all the sensors that i KNOW work fine in the other car, and still doing it!!!
if anyone has a suggestion PLEASE help i am at a loss...what more can i do