Need help with stumble and tune for sure.

[PBRstreetgang]

Hi all, I have a hybrid Gen3-4 car that Im having monster troubles getting to run properly. I am by no means a tuner and I am pretty stupid actually, as I bought this car is a great example. So my knowledge of Hp and tuning is rudimentary, so be gentle.
Stumbles at around 2-3k rpms and looks lean? I have a AEM wideband installed, but it keeps failing. Got yet another on order.

2002 C5 Z06 Corvette
Here are the specs on car:
? GM crate LS3 stock engine ? with GM LS2 silver blade throttle body.
? LG 1-7/8? long tube headers, no Cats, only 2 forward AC Delco O2 sensors
? Vararam Intake, with Gen 4 MAF card type sensor
? 525cc FIC injectors.
? Racetronix upgraded fuel pump harness. 70psi at idle.
? LS3 coil packs
? Manual Transmission
? Gen 3 2003 engine wiring harness and 2002 PCM with Racetronix adapters for MAP sensors, throttle body, cam and crank position sensors and knock sensors.
? (8) Fuel injection adapters to use the Gen 3 engine wiring harness. LS6 knock sensors.
? Autoblip installed.
? Lingenfelter trg-002 58x-24x box installed on firewall.
? 18Lb lightweight flywheel
? 93 octane fuel, no additives.
? OEM fuel pump
? No emissions, No A/C, No ABS, No traction control or stabilitrac
? 10% ATI underdrive crankshaft pulley

[edcmat-l1]

Post the tune file to go with the data log.

Trims are pulling a lot of fuel. That's the opposite of lean.

Chances are you don't have the injectors setup correctly which will then throw everything else off.

And, this is in the wrong section. Needs to be in the GEN3 section. PCM is 2002, doesn't matter what the engine is.