Well, ive been out here all day trying to get this right. I have a holley 850 cfm carb that im trying to get running right, and its giving me all the trouble in the world. I can get my car to start, but it runs like crap and there is tons of black smoke. I did a search on this and couldnt find anything... all the search told me is that i may have a vaccume leak. Ive gone through and replaced a few gaskets, tightened all the screws and all that, still the same thing. Does anyone know whats going on here?