when the car is cold, it stutters at low rpm's, but is fine once i get past 1500 or so. I had new ngk plugs and old ngk wires and i thought it might be that the wires were old so i put in the MSD super conductors, and that did nothing. Since I was thinking the only 3 things it could be were spark, air or fuel. Well unless its the distributor its not spark, the car runs perfectly fine when warm or past 1500rpm's when cold, so i wasnt thinking that its not getting fuel. I put in lucas fuel injector cleaner, nothing. any ideas??? Mod list below.

'97 GSX (4g63)
99 front facia/Big 16g turbo, 16psi/custom intercooler piping/turbo xs dual stage boost controler/greddy bov/MSD 8.5mm superconductor wires/NGK plugs/18" hyper black rims w/chrome lip/aem drilled and slotted rotors/front upper and rear lower anti-sway bars/test pipe/magnaflow highflow cat/cat back exhaust/eibach springs/ground control coil-overs/1600lbs act clutch/organic flywheel/zeotronics digital air/fuel readout/autometer sportcomp boost and cobalt egt gauges