Please Help with KA-T, no idea what's wrong

[KAs14slider]

Hi there, let me start by explaining what first went wrong with my car. One day I was driving along (car was running great for weeks now) and all of a sudden my car starts running super rich ( I have a wideband) and dies, I try to fire it up and it idles then dies. Black smoke is shooting out of the exhaust and turning down the fuel on the safc II does nothing. We tow it home and I discover that all the lower injector orings are torn. I replace all these, put them in and car still runs extremely rich and can't hold idle with black smoke constantly coming out. **** As a note, it's not my plugs because my spark plugs get fouled after every time I tried firing it up and the car ran rich soI constantly put new ones in. I have gone through a lot of sets already.**** I So I try to think what's wrong. I also had to do an oil change because it ran so rich there was a lttle bit of gas in my oil. I test the injectors to see if they are leaking and they are not and they don't make any clicking/whining noises so I don't think the solenoids in them are bad. So I think my stock maf may be bad. I go ahead and order an n60 maf because I had wanted one for a while anyways. We hook up the maf and at first it runs the same then I mess with in out settings and the fuel and I actually get the car to idle perfectly and the afr's stay in the 14's. This is a step up because before the car couldn't even idle.
Now here is my new problem. The car will idle fine and you can step on the gas gradually but if I blip the throttle just a bit ( not %100 and I don't even make it to out of vacuum on the boost guage) and instantly let off, the wideband jumpes quickly to completely lean, (at which point the car stutters a bit) then goes fully rich, returns to idle and gradually the afr's go settle back down to normal. So basically I can kind of drive it around by giving it barely any gas but as soon as I get into the throttle a little it leans out and falls flat on its face. I have no I dea what the hell could be wrong. Could it be impromper safc in out settings? I have tried a lot of combinations and most make my car either super lean or rich and it dies. But the car seems to like 1 in 5 and 2in 5out.
The only thing that is wrong is my air intake piping into the turbo does not have a perfect seal because I am waiting on a 2.5inch to 3 inch coupler which will arrive tommorow. It's because the n60 maf is too big to fit into my stock sr air intake piping. So I just put on a 3in to 3in coupler which fits perfectly over the maf but does not go tight around the piping to the turbo.
Sorry for the very lengthy post but I have no idea what's going on with the car and any help would be appreciated.

Some essentials of my setup:

sr t28
370cc's
stock ecu with safc II

Thanks, Alex.

[KAs14slider]

Ok, so I fixed the air intake piping and that didn't do anything.
Anyone have any idea or is the post just too long?

[KAs14slider]

Simply put the car leans out completely as soon as it tries to go into boost under load.

[KAs14slider]

Here is the really wierd thing. If it's in neutral I floor it, it goes lean for a sec but then revs fine to redline and is rich. But I tried pulling it out of the driveway and as soon as I started to go up a hill, the car went out of vaccum and instantly leaned out and shut off. And I had to roll it back into the driveway.

[Koopa Troopa]

You said you turned down the fuel on the SAFC.. Did you ever turn it back up?

[KAs14slider]

You said you turned down the fuel on the SAFC.. Did you ever turn it back up?

Yeah, turning up the fuel does nothing. It makes it run so rich that it wants to die if I rev in neutral but as soon as I try to drive it it leans out and dies.

[Skaterjunky8]

you sure you dont have any leaks in your IC pipes?