Idle Performance

kneedragger25

Registered User
So I already did the plugs (MC double Plat) and the wires are 9mm accel universal wires cut to fit. The problem I have is sometimes the idle will smooth with no concerns and other I will have a rough idle and the tach will flutter a little. If I sit at a drive threw the longer i wait the idle will go from smooth to rough. Im not sure if the fuel filter has been changed ever but based on the lack of maintnance when I got it I doubt it. But could it be a leaking injector or bad spray pattern? what are your ideas? Im just trying to get my 90sc to run like my old 92sc
 
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