acts like it's out of gas!!

[PeteF]

I had a similar problem, and it turned out to be the fuel pump. One of the one-way valves in the pump came unseated (they were press fit in place). The car would start and run, but would stumble and die out occasionally. It was a Holley mechanical pump. Replaced pump, and now good as new. Your problem sounds like the pump, or some blockage upstream.....good luck.

[Tommy]

In the absence of more information about your set up, I'm going to make some assumptions before offering some ideas. First I'll assume you have a gravity feed line from the fuel tank to the mechanical fuel pump. Second, I'll assume the fuel filter is between the fuel pump and the carburetors. If these assumptions are correct, and your fuel filter is dry when the problem occurs, then you are either not getting fuel from the tank to the pump, or the pump is bad. It should be easy enough to determine if fuel is getting to the pump by disconnecting the line at the pump and seeing if fuel flows freely from the line. (Be ready to catch the fuel and do this in an open area where spilled fuel won't cause a fire hazard). If fuel is flowing freely to the pump, then it sounds like time to get a new pump.

[saltshaker]

the fuel tank has a pick up tube on the top of the tank which would mean thet the pick up goes from the top of the tank to almost the bottom...if I disconnect the fuel line at the pump (which I have) the only fuel that will come out is the fuel in the line not the fuel in the tank! I see nothing that would obstruct the flow of fuel in the path from the tank to the pump...I'm leaning towards a bad fuel pump!
Jon

[jhv48]

Could also be crap in the tank settling on the pickup screen then floating away once suction is relieved.

[Tommy]

Originally Posted by saltshaker

the fuel tank has a pick up tube on the top of the tank which would mean thet the pick up goes from the top of the tank to almost the bottom...if I disconnect the fuel line at the pump (which I have) the only fuel that will come out is the fuel in the line not the fuel in the tank! I see nothing that would obstruct the flow of fuel in the path from the tank to the pump...I'm leaning towards a bad fuel pump!
Jon

Apparently your fuel pump is higher that the fuel level in your tank. If it were lower, siphoning action would draw fuel from the tank even if the pickup and parts of the fuel line were higher than the fuel level. That's what I meant by "gravity feed."

[ratsnst1]

Originally Posted by Tommy

In the absence of more information about your set up, I'm going to make some assumptions before offering some ideas. First I'll assume you have a gravity feed line from the fuel tank to the mechanical fuel pump. Second, I'll assume the fuel filter is between the fuel pump and the carburetors. If these assumptions are correct, and your fuel filter is dry when the problem occurs, then you are either not getting fuel from the tank to the pump, or the pump is bad. It should be easy enough to determine if fuel is getting to the pump by disconnecting the line at the pump and seeing if fuel flows freely from the line. (Be ready to catch the fuel and do this in an open area where spilled fuel won't cause a fire hazard). If fuel is flowing freely to the pump, then it sounds like time to get a new pump.

when the car is turned of if u have a fuel presur gauge check it , key it of turn pump on , very simple, if not do it your self.