Still hesitating

Try turning the idle rpm up a little, maybe 700-750. Do this and try driving. Better, worse, no change?

After that, try opening up the idle mixtrure screws a 1/8-1/4 turn on each side and see if that helps the stumble. Fatten up the idle a smidge. If 1/4 turn helps, open it another 1/8 turn. It may want to run a little richer at idle. Ede's aren't as easy to tune on the accelerator pump as holleys.