1988 fifth Avenue stalling problem

I have a 5th Avenue (1988) with a 318. I replace the spark plugs, cap and rotor, fuel filter, and replace the fuel pump. It runs smooth and it does not miss.
This is my problem.....driving down the road it will die. (feel like it is not getting gas.) After it dies, it will start right away and be ok untill the next time. (It seems to it more if you are going faster than 30 kms).
I was thinking now it could be that fuel ignition modular that is on the side of the air breather, or maybe the coil. any ideas?

These cars had a carburetor, right? Try disconnecting the fuel line at the carburetor. Hold the fuel line over a clean container and have a friend crank the engine over. You should get some nice spurts of gas out the line.

If the gas trickles out in a tiny dribble, the flow is blocked.

The fuel pick-up tube in the gas tank has a nylon screen over it. If your tank is rusty inside, the screen may be blocked.

Also take a look at the fuel line. It might be kinked or bent underneath and blocking flow.

If the gas flow looks good, then the carb's float might be sticking or the float bowl is dirty. A carb rebuild may be required.

It has a carb (2 barrel) ,but also on the side of the air breather a "Electronic fuel control system"
I replace the fuel pump, fuel filter, coil, cap and rotor, plugs.
Could be the pick-up coil.
I brought a ignition control modular, square box about 2"x4" with a plug for 4 wires (napa part # Tp51sb) but I was told that some 1988 don't have one (mine don't, i guess I should have look first instead of taking Napa word for it) It seems it is all part of the "Electronic fuel control system" a computor on the side of the air filter housing

Also for the first 3 miles it runs good, then loses power and dies. starts right away and good for 1 miles, then dies...Then it will start and dies 8 times in a mile. but it idles good





These cars had a carburetor, right? Try disconnecting the fuel line at the carburetor. Hold the fuel line over a clean container and have a friend crank the engine over. You should get some nice spurts of gas out the line.

If the gas trickles out in a tiny dribble, the flow is blocked.

The fuel pick-up tube in the gas tank has a nylon screen over it. If your tank is rusty inside, the screen may be blocked.

Also take a look at the fuel line. It might be kinked or bent underneath and blocking flow.

If the gas flow looks good, then the carb's float might be sticking or the float bowl is dirty. A carb rebuild may be required.