I was off today and decided to go to the barn and crank some of the cars. I got them all running, without a problem.....Except for my 85 monte carlo. It spins over fine, and is firing. If you leave the key on for a bit it will crank but will go dead after a few minutes. It has the stock fuel pump in it. I know it is pumping a little because i have a clear filter on it. My question is can a fuel just barely work. It pumps a little but just barely flows. Is it possible for the pump to barely pump, or have somthing blocking the fuel lines.