my car is in pieces right now. there are no accessories on the motor. the radiator is out of the car also. we just finished the wiring (hiding wires) and finally got it started today. the motor fires up and idles for about 10 or 20 seconds and then dies. if i rev it up it stays running, but as soon as i let off it starts to miss really bad then dies. there is no miss as i rev it up though. im just running headers at this point so i can hear the motor real well. the egr is not hooked up, the 02 sensors arent hooked up, and there is no coolant in the block (temp sensor?). give me some suggestions. by the way there arent and vaccum leaks. l double checked. thanks for any help.