aziraco47

I have an str turbo intake manifold and i noticed that it doesnt house the fitv only iacv..so everytime i start the car after its been sitting for awhile it just revs up then dies out..i have to keep it revving by holding the gas for a few minutes then it stays on but drops to about 800 rpms..the car feels like its going to die out tho..after driving it for awhile and engine is hotter then it seems to run fine..i cleaned the iacv, but maybe i need a new one..ive looked for vacuum leaks..i dont know what else to check for so any solutions will be appreciated..btw its a 95 gsr..k thanks