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Message: <blockquote data-quote="red9535" data-source="post: 190350" data-attributes="member: 9737">Sounds like a misfire to me..I'd investigate things in this order.1 - Misfire or no-fire. Hook up a timing light to each spark plug wire and make sure it's sending power to each spark plug. Then, after letting it run for a few minutes. kill the engine.  Spit or spill some water on each header pipe.. it should start fizzing and cackling. If it doesn't, then that cylinder is cold (not firing).. start with replacing spark plugs..2 - Harmonic Balancer. A crapped out one of those can cause a shitty idle3 - Bad fuel?~750 RPM isn't that low. It should idle decently there..How is your timing? If that's set the way you want it, but it still seems like its way out to lunch (misfiring like a bitch),  i'd next investigate your timing chain. COuld be worn out, loose, jumped a tooth, whatever.If I had to guess, i'd say this. A misfiring car can run on idle - my car has idle'd on 4 cylinders before, with the other 4 not doing jack shit. Once you rev it though, it's all over - it will tend to just die out.Also, i'm not sure how long this gas has been in the car.. but it does go bad. And bad fuel can lead to rough starting, shitty idle, and stalling.</blockquote>