1990 351 cu in was running great brought it home parked it for a week and didn't want to start. Replaced fuel filter and it started but ran rough with check engine light on. Following week replaced spark plugs but wouldn't start without spraying carb cleaner in air filter, check engine light still on and running rough.
Now it won't start without spraying carb cleaner in air filter.
Any suggestions? Thanks in advance!! New member. 160,000 miles, fuel injected.

 

[sm=welcomesign.gif] try plug wires, distributor cap, rotor button, ignition coil and air filter