Off idle stumble edelbrock and 340!!!!!!!!!!!

[kt340sport]

Still have a nasty stumble in my 73 dart sport 340 stock engine , with the excep of 600 edelbrock , its when leaving lights and stop signs , at high rpm doesn,t seem to do it stock intake spacer and carb , car seems to idle great, and takes it fuel good under quick acceleration , and has good flow of fuel at both nozzles , antbody have any suggestions , very annoying.

 

[69340]

I had the same problem at the drag strip a couple of weeks ago. I got a calibration kit for the carb and went one jet bigger, problem went away.

 

[340 8BBL]

accelerator pump drive linkage,the pump shot may not be big enough.whats your initial timing set at?

 

[Rob R]

It's lean...jet it up