I have a 1987 camaro iroc with a built 350tpi 5speed....the prob its havin is somethign with the ign.it would run great around 2months ago around town then out of no where die like its not getting fuel or battery died...well the last couple of days it would die sooner like a sensor is getting worst..i just replaced the coil on the dizzy.now that it wont start and after i turn the key over not starting it i can hear a click noise coming from the driver side front of the fender from a relay it looks like with 3 wires goin to it...with the key on it will click every 20secs.heres a pic of it....need to know what this does and if it could be why my car doesnt start....thanks

 

That could be the fuel pump relay. If it is that will definitely cause your starting and running issues. They are fairly cheap like $12-$15.

 

ohm your fuel injectors too.