Misfire? high RPM

[PSIValentine]

Last night my sr swapped s13 started to, what felt like a misfire, like it was leaning out or something. I popped the hood and realized that the vaccume hose from my boost controller to the charge pipe had oil on it, and had swelled up and slipped off. I immediately replaced the vaccume hose, and it improved but it's still doing it. I pulled the plugs, which were almost brand new, and they look like it's running really lean, which scared me. It's runs fine, but if i accel WOT high RPM or even just max boost, it starts spitting really bad, like BTTTTTTtttt, sounds like a machine gun, my friend thought it was my spare tire. Either way, lean conditions scare me.

I bought it with the motor swapped and FC commander (which i'm not completely firmiliar with) Almost 4 years ago, and since then i swapped the Turbo and an array of other things. I know i'll figure it out but if anybody has any experience with this, or any exstensive knowledge with the FC commander let me know. I have a few questions about things i can't figure out.

I'm hoping it's still just a vaccume leak, as the hose i put on didn't fit super ninja snug on the petcock, but either way, any ideas before i start trying to figure this out?



Thanks.

[180fan]

was an upgrade to the fuel system part of those series of upgrades? list what's been done to this motor.