I have a w116 1978 SEL has anyone replaced their carburettor? I have a 40 DFAV Weber carburettor off my V8 Rover I was thinking of using, the car runs on duel fuel.
NOt sure what you mean by "replacing the carburettor". If it is indeed an SEL, then it is fuel injected, and if it is indeed a 1978 model, then that will be Bosch K-jet. K-jet injection is actually pretty simple and reliable. I recommend you sort out its problems rather than try a carb conversion.