Light throttle input off idle equals rough/stall

[Cubster]

Never had this issue in any of my CIS cars, never...and not sure what in the crap is going on. Ok...car is idling.....let off brake to move forward...light throttle (adding a few hundred RPM's) and it stumbles....then stalls (if held in that position). It's like there is a small window/position of the throttle that the system doesn't like but I'be tried adjusting everything up/down....timing and everything.....

[WaterWheels]

Not something which will be easy to track down over the net, but it seems more like either a "tune up" thing or a fuel delivery thing. The tune up part is self explanatory I think and if one has not been done in the past year then it would be wise. Fuel delivery could be a few things, like dirty injectors, sticking fuel distributor plunger, or air sensor plate adjustment/sticking.