Paul, this is a well discussed issue. The original holleys that came with these cars are often junky and beyond repair. The vast majority of the 67-68 Imps have Carters now. My Sedan has a spread bore AVS. The LeBaron has a junky quadrojet, and the original holley sits proudly in the trunk, where it belongs... D^2 Quoting RandalPark@xxxxxxx: > Replace it if you want to, but the Holley isn't suppose to make black smoke > either. If it is doing that there is still something wrong with it and it can > be fixed. If it wasn't right for that car, it wouldn't have been put on it in > the first place. > > Paul > > In a message dated 1/16/2004 7:09:33 PM Eastern Standard Time, > bobsmopar@xxxxxxxxxxxxxx writes: > > > Hi All. > > I want to replace my holly carburetor on my 68 Imperial what carb, will fit > on this car without a hole lot of modification. > > The reason I want to replace it is the black smoke that will not go away. > > I bought a rebuilt on and had it put on and adjusted it was > > fine for a while but then it started doing it again. > > Thank you. > > bob > > 68 Imperial convertible > >