Hi, my 1970 280sl will sometimes hesitate when idling while in drive or reverse. When the engine is cold it starts fine and idles well. Once it warms up, if I sit at a red light for a minute or two, the car will idle normally then the idle drops for second, like it hesitates or is not getting enough gas. The injector system has been completely rebuilt, the fuel pump is new, all the spark plugs and wires are new, we installed an electronic ignition, etc. The only thing I have not changed were the fuel injector nozzles. The entire motor was just rebuilt by Metric Motors in Los Angeles. The car runs perfect and has lots of power. Any suggestions?
Nick