Roadrunner w/440 Stalled

[68roadrunner440]

Hey everyone. Could use some help here. Was driving my ‘68 roadrunner with a 440 BB and it just died. It will fire up when starting fine but immediately dies once the initial fuel is burnt in the 4bbl Holly 750. Does this over and over. Starts right up but dies after a second or so. I tried replacing the ballast resistor and no change. When pumping the pedal I see gas entering the throats so it’s getting fuel. Seems electrical to me. I say this because on a whim when starting after several attempts it fired up and stayed running but stalled again about 100 yards down the road: Maybe the point distributor but that’s only a few years old. Any advice would be extremely helpful.

 

[Z-Man]

I had a cracked coil that would do that.

 

[WileE]

Hey everyone. Could use some help here. Was driving my ‘68 roadrunner with a 440 BB and it just died. It will fire up when starting fine but immediately dies once the initial fuel is burnt in the 4bbl Holly 750. Does this over and over. Starts right up but dies after a second or so. I tried replacing the ballast resistor and no change. When pumping the pedal I see gas entering the throats so it’s getting fuel. Seems electrical to me. I say this because on a whim when starting after several attempts it fired up and stayed running but stalled again about 100 yards down the road: Maybe the point distributor but that’s only a few years old. Any advice would be extremely helpful.

This symptom, assuming you're accurate, indicates fuel starvation. Your description in bold points to the fuel bowl not getting replenished, which would be the fuel system from the tank to the float valve. Then you say it's getting fuel. Either it is, or it isn't.