need help on stumbling issue
 

Ok--the car is a 1986 GxL all stock. not too long back I had a minor flooding issue--a push start took care of it. but then i noticed that the car started to run a bit rough. it would randomly stumble a bit when I pushed the gas. it was about time for a tuneup so I replaced the plugs and wires, as well as the fuel filter. The stumbling only got marginally better, and then got worse again. Now the car turns over but will not start. when turning it over you can hear that it is not totally flooded--it has the fluctuating sound, so I know that is not the problem. What should I look at first on this?

how many miles? Have the injectors ever been professionally serviced?

105K on original motor--never rebuilt. and the injectors are about to be replaced--I have a set that was sent off and pro cleaned. Should be able to pull the old ones tomorrow.