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How do you know it's only running on 4 cylinders? I don't see a V8 running at all with only 4 cylinders...maybe 6 at worst.



A V8 certianly would only run a 4 , A friend did it with a 396 many , many years ago , he actually drove the car up a steep incline , commented on how bad it was running , open the hood and 4 wires on the right bank are laying on top of the air cleaner ... .

this looks like a carb problem , Carb cleaner and compressed air to clean out passages .

how old is the carb that is being used ?