Here's hoping someone has had experience with this. Truck runs great for week or so, then random problem. After shifting to 3rd gear it begins to cut out bad, have to pull over. If I turn off ignition wait a couple of minutes, it starts fine and runs good again until the next time it happens. It is definitely getting fuel to carb, and spark. Replaced: coil, ignitor, pickup coil, fuel pump (added in line filter between pump and carb.) re-built carb carefully, made it run a lot better, but didn't stop the problem. Any ideas will be appreciated.