My 1984 Merecedes Benz 300SD is extremely slow when "taking of"and just get speed on a wighway but not strong if I need to pass someone. The compression is not bad and the it has 212Kmiles.
The turbo works fine. Just to have an ideia,when the car is in idle pushing the acelerator to the maximum the engine RPM increase not fast as supost be.What could be the problem?

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Nyck - TX - USA