OK, guys. I need your help again. After I got my car back from paint, I pulled the tape off this tube and forgot what it hooks up to. If there is a part missing in the picture, I am sure I have it, just need to know what it looks like.

1971 Plymouth 'Cuda right back engine well.

Thanks.


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on my old 71 RR there was a hose that hooked to the bowl vent on the carb. It would work good for a retune line for a regulated system.

That’s the fuel tank vent line, in 71’ it was connected to the crankcase breather cap on the right valve cover. A larger hose from the carb bowl vent valve would have it’s own nipple on the breather cap as well.

Or better yet, if I run the carb bowl overflow to the tube?


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If you cap it, you will be eliminating your fuel tank vent. You will then be creating a vacuum in your tank as you drive the car and the fuel level lowers, which can cause vapor lock, and can also cause the tank to slightly flex as the vacuum becomes stronger. I had my Cuda set up like this for a while, and when I would take the gas cap off to refuel you could hear a "woooosh" as the air rushed back into the tank through filler tube, and you could also hear the tank flexing back into it's original position. But, if you do plug the line, a vented gas cap is all you need to solve this problem - that's what I ended up doing.

You could also just make some kind of a small breather/filter for the end of the line to keep crud from getting in it, and leave it as-is. As long as the filter doesn't block air from flowing in and out of the line, you should be fine, and the line will remain as a tank vent.

Connecting it to the carb vent may work fine, but I'm not sure. It may work fine as far as venting the tank, but the carb may not like it. You might be creating another problem to solve the first. My guess is that you would be connecting two things together that both need to be vented, but not have an actual vent for either one, giving you two problems instead of one.

Why not connect it to the valve cover breather like it should be?

So, can someone point me in the right direction on where I can buy a three port valve cover breather? I would like to stay away from ebay. I am buying parts as I go over time. I may not be able to buy it now.

Thanks


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On the flip side, what would be wrong with a couple of creatively placed T-fittings so I could use a one port breather. The three lines all go to the same place anyway right?


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I ran the line to my air filter base on top of the carb as suggested by many here on Moparts. I haven't run the car yet but it makes sense to me.

Not sure about the fuel iine, but I think the rubber splash shield you have installed with the snap clips goes on the out side of the inner fender??? I might be wrong