Sr20det Starting

Okay with my luck ( ofcourse) I’m was about to put cash in his hand, and the car stalled. We tried to start it but it wouldnt start. It sounds like its about to fire , then cuts out. I think there isn’t enough gas. He at home know and his car is in my driveway. Can someone verify or gimmie an idea of what it is. I want to buy the car, but i want a running car lol.

pull of the return line check flow, if sufficent pull off a spark plug, check for spark, if both are present check timing

Okay, Well he forgot his phone half way home, came to get his phone , and it started first try, But if it dropped below 1000rpm it wanted to stall, he gave it gave, and took it around the block and it wouldnt even stutter. He know brought the car how, and i would love to buy it its just, i wana know the problem, i would lovefor it just to be gas!