Re: “Inside” part of road draft tube
That’s where I’ve decided to put a pcv valve. The way my manifold is designed, I’m going to need to pickup vacuum from each side of the manifold.....so I don’t lean out any cylinders. I don’t really want all of that “plumbing” under the manifold. It’ll be easy to run a line from each side of the manifold below where the center carb would go and T it just before where the capped off road draft tube/pcv valve will be.
It won’t look as clean, but it’ll sure be easier to troubleshoot if there is a problem with the valve.
I’m also considering just using a metal pcv valve that has a threaded end and threading a small hole in the boss instead of a full-size road draft tube hole.
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