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Ross F-1 · 07-18-2021, 03:09 PM

I had a PCV setup using that vac connection, and opened the two drillings up to 1/8" or 3/16" for better flow. They are really small from the factory.

07-18-2021, 03:09 PM	#10
Ross F-1 Senior Member Join Date: Nov 2010 Location: NM Posts: 2,438	Re: 8ba Inlet Manifold Under carb Vacuum. I had a PCV setup using that vac connection, and opened the two drillings up to 1/8" or 3/16" for better flow. They are really small from the factory. __________________ '52 F-1, EAB flathead