anymore input on this? I did a motor swap recently. The first drive, the car idled fine. After that it has the same exact shake. Not a vibration, just a big rocking movement. It only happens when warm. Not the fuel, i checked. Not the filters, i checked. I checked my valves this afternoon and all are in adjustment. What the hell? The only thing I can think of is an injector.

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1981 300SD 512k OM603