313hitman

hey everyone, first off... I have an 84 camaro with a 383 stroker, edel. 750 carb, and hooker headers. the problem is that everytime I start the car it shut back off suddenly or in several seconds. I thought it was the ignition module so I changed the dist. cap,rotor, wires, and module,still same problem. its odd because it starts everytime I turn the key.even if I try to keep the car on at 3000 rpm, it dies. any help is greatly appreciated..