I am currently working on a 1975 280C. I aquired this vehicle as a restoration project gone bad. It had set abandoned for 8 years. When I got the vehicle it had a terrible miss. Find following the steps gone through to eliminate this problem.<br>1) Drained old fuel and replaced plugs and wires.<br>2) This seemed to help the problem substantially.<br>3) Removed carb. cleaned and added new needle and gasket set as well as the vacuum pull off for the secondaries on the solex carb.<br>4) After doing this the engine had a slight miss.<br>5) Took car to body shop. After 3 weeks the miss had returned.<br>6) Removed the plugs again they were all black and the #3 plug was wet. I don't know how relevant the plug color is because it has not been driven on the high way yet.<br>7) Replaced the #3 plug and ohmed the plug wire.<br>If anyone has thoughts on this project it would be appreciated.