highboostb18c1

heres the problem. at idle my car only idles at like 480-540rpms. if you drive or rev it and let it come back to idle, it shuts off. when i pull my plugs the are Real black.
i have a 2000 gsr with 37k on it, drag gen 3 turbo kit w/ rc 440cc inj. walbro 255 pump, aem rail, vafc II , msd cap and coil. thats the setup the vafc 2 is turned down -50 at idle and slightly increases from there.
what could the problem be? any imput will help.

Happyman

well your plugs are black from running too rich...try turning it to like -60 at idle...