I have a 78 F-250 with a 400M completly rebuilt about 15k ago. My # 5 cylinder is flooding With all plugs removed # 5 blows out gas, it has the Edelbrock carb/manifold on it. It just started running rough while driving. Any help?
If you have gas flooding in one cyl only, with the plugs out and it still does it, you may have a stuck or damaged intake valve, valve guide, valve seat, valve spring you could pop the valve cover and see if it is stuck open
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