[jfb94]

94 5.0 having idle problems. under load or just revving it up it seems to do fine, good throttle response, but when it gets down to idle it starts getting really rough. not surging or anything idle is still at about 550 or 600rpm. just a really bad miss. ideas? thanks for any help.

 

[2oo5GT]

Maybe vaccum leak or your IAC or MAF might need to be cleaned.

 

[Bullitt95]

The ignition timing could be off. Also check ignition components like plugs/plug wires/dist. cap/rotor.

 

[EagleAutosports]

That idle speed is really low, it should be around 700-750.