I have an 85 244 Turbo and it took a long time to get it right.
1.You need to find all the vacuum leaks. Intake gasket,injector O rings(while you have them out check spray pattern),all vacuum lines,exhaust gaskets,exhaust pipe leaks,intercooler hoses.

2.Then on to the ignition(you said you changed the plugs,wires,rotor and distributor cap.Check timing is set to 12 degree's before TDC. Check wire connections,clean ground wires,fuel pump relay(good tight connections)and fuse connections.
3. Replace the O2 sensor(you can buy a O2 sensor socket at Advance Auto or other parts store)you need to do this ''before'' step 4.
4.Now you can set the base idle. Deactivate the CIS by grounding the blue wire on the drivers side inner fender (below the coil)there should be 2 wires 1 Blue and 1Red,you ground the blue wire and adjust the idle with the throttle screw.It may not idle without stalling so bring idle up to 750RPM's. Now activate (remove ground wire)and set the micro switch so it clicks just off throttle.
5.You should have the Fuel Pressure check or buy the set up for testing.This is important for a good running engine.
This should get you going.
Charlie