Re: “Inside” part of road draft tube
Ok, all I need is the tube that goes into the hole in the right front of the lifter valley. My early Navarro manifold does not have a hole in it for the road draft tube. I’ll be cutting and capping the tube off 4” or so above the lifter valley so I can put a fitting and hose on it to go to a PCV valve that’s tapped into the bottom of the intake manifold for vacuum.
Here’s the hole:
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