First off, my 2F is desmogged. Its running really quite well for me but it recently started making a high pitched squeeling sound. Pretty quiet at first but its getting louder. I first thought it might be a bearing on my alternator or something. If I reved the motor slightly it would go away, but not anymore. I have figured out though, its a wistle caused by vacuum. I've got a vacuum hose running from the base of the carb over the top to the PCV valve. This hose is getting sucked in to where its collapsing on itself. Do I just need a tougher hose or have I got too much vacuum?
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