Date registered: Jul 2008
Vehicle: 1971 Mercedes 280sel (w108)
Location: Nixa Missouri USA
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I have a 1971 280sel converted to a carb. The fuel pump did need changed, but just to a lower pressure electric pump. Not a mechanical. Also the fuel injected type intake manifold did not need to be changed. How is this possible, you ask? "SU Carburettor. A mounting plate was put on the intake to accommodate the carb, the injector ports were plugged, a cover plate was put onto the opening where the gear for the injection pump goes. Granted , this is far from original, but it works and works very well. Starts very easy, good amount of power, not as much as the FI but enough. The only drawback is that it tends to build up fuel in the belly of the intake manifold. Only when it is left at an idle for any period of time. Then when you take off, it belches out the tail pipe. I bought this car about 2 months ago. When I first got it, I thought, there is no way I'm keeping this stupid carb setup. But, the more I drive it, the more I like it. The rest of the car is very original and in very good shape, and for me it makes up the difference of the Frankenstein fuel setup.
Good luck with yours, whichever way you decide to go.