Join Date: Nov 2001
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Try something simpler than the carb.
Make sure that the spark plug wires from the distributor are going to the correct spark plugs.
The symptoms you describe (starts, idles rough, dies when throttle advanced) match "crossed plug wires", as well as some carburetor- and fuelline-dirt problems.
Especially if someone was working on the engine, this is a likely condition -- and a real confusing one, because everything _looks_ OK.