stalling issues

[67fastback]

hey all,
Having isue with gf's car stalling at higher speeds. it is a 94 nisson altima 160k.
It just had fuel filter and distributor replaced last week, do to lack of spark... Now the car is wanting to stall driving down the road around 40 mph or higher speeds.. shift to neutral and turn the key and starts back up.It did this about 6 or 7 times in a row.. Then ran fine after that all the way home.

Another thing it seems to have rough idel and sputters a little on take off then smoothes out. No really sure what to check next to fix the issues...