Stalling & Hard Starting Issues

[boys3rt]

Looking for help please? I have a stroked (472) 2nd Gen Hemi. Recently I have been experiencing an issue for which I am seeking some advise. Recently went to a cruise approximately 20 -25 minutes away from home. Car performed great. Once I stopped to check in to enter car stalled. Started cranking and the engine started but stalled again. I limped to a space and when trying to back in the stalling and hard starting got way worse. II tried backing in to a space and it must of stalled 5 or 6 times and really tough to restart . It was a beautiful dry and cool day. Car never ran hot during this time.  I decided to wait three hours plus before leaving the cruise to return home. Car started fine and off I returned back home. No issues driving , stopping or even stepping into it a little. By the time I got home and pulled into the driveway the car stalled again. I gave up and pushed the car into the garage. I admit I am stumped. I have a Mopar Performance Electronic Ignition system with single ballast resister. I am leaning towards an electrical issue as it took about the same time for the car start acting up. If was fuel related I would think the issue would have continued after the car was off for a while.
I have one more symptom. When trying to start the car after cranking and letting the key go you would feel the engine kick sometimes.

Any thoughts? Most Appreciated.

[b5blue]

  I had a weak connection in my ignition wiring. What I found out was while I always had a 12 volt reading where I should, the weak connection intermittently reduced amps. Possibly try jumping 12 volts to aspects of ignition. (?) 

[70 sublime]

Have you ever driven your car farther with the same weather temp conditions and it has worked perfect ?

Sounds like vapor lock ( gas boils out of carb) and 20 25 minutes is how long it takes to get hot enough
Sit around for a while and things cool off enough it works fine again

[JR]

Sounds like heat soak

Either youre cooking the fuel in the lines and causing a vapor lock (my number 1 guess), or an electrical compnent is getting hot and breaking down under the heat.

Either situation would explain why the car won't restart after it stops moving, and heat is allowed to sit and cook the engine bay.

Next time it happens, pull a plug wire and check for spark. If you have spark but no start, check to make sure fuel is spraying from the carb. If no fuel sprays when you apply throttle, it's vapor locked.

I'd bet it's one of the two.

[303 Mopar]

Any thoughts? Most Appreciated.

Exact same issues I had with mine and finally was fed up enough to buy a Sniper EFI.  No more problems and the throttle response is incredible! 

[Brass]

How old is your coil?

[Back N Black]

I had the same symptoms before and it was the coil getting hot, new coil fixed the problem. I had a spare coil in the trunk and swapped it and she fired right up. 

[krops cars]

Next time it dies. Feel the coil. A lot of time if they are bad they get real hot because there is no oil inside any more. I' am leading to fuel vapor looking. EFI is awesome, but you lose some horse power.

[boys3rt]

Just want to say thanks for all of the responses. I will try a coil and see!
thanks again

[c00nhunterjoe]

Are the fuel lines touching the engine anywhere? Stock steel lines? Carb insulated from manifold? Sure does sound like vapor lock.

[69wannabe]

Wonder what carb? Sounds like a fuel issue like maybe the floats are sticking or are way too high in the carb. Also heat is a big issue on carburetors these days but it's usually after the car sits after its been driven. Sounds like its flooding and stalling out but sometimes an ignition problem can act like a fuel problem and vise versa...