Well, I did just as you said and here are the results: Idle increased very little (could hear but couldn't really see on the tach) and it ran a little rougher. The engine is stock. I forgot to mention this before, but I am pretty sure it has a head gasket leak (uses some water, no external water). But I don't think that is all of my problems, I think I have vacuum leaks as well. I will be changing head gaskets soon. I just don't understand why the propane or carb cleaner did not really work. I have thought about starting fluid, but ????
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