Hi all I have a 1982 F-100 with the 4.9l straight six with 150000 original km's on her.She doesn't use adrop of oil and runs great when on the road but it is missing when it's just idling.I don't think it's an ignition problem as everything checks out, I was going to replace the carb or does anyone think it could be burn't valves? then I would have to have the head redone???
Any suggestions?
thanks