my 88 vette its hard to start.i have to hold it to the floor to get it to fire,then it fires for about 2 maybe 3 revolutions then it sounds like i hit the kill switch(hypatheticly speaking).it boggs then dies.now if i unplug the fuel pump relay it starts to run progressivly better untill it runs out of gas.then when i plug the relay back in it just seems to flood out. are my injectors bad or is my regulator the problem? thanx to anyone who may know the solution to my problem