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Ported vs. non ported vacuum?

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02-15-2010, 12:04 PM	#1
lyrikz PITbut Join Date: Sep 2007 Location: monroe washington Posts: 3,052	Ported vs. non ported vacuum? Can someone explain that? I have a stock rochester quadra-jet on my truck and for my HEI dist. i need PORTED vacuum. How the heck can i tell if its ported or non ported? Whats the definition of manifold vacuum.. Basically just like it sounds im sure. __________________ New project. 1971 Twin Turbo blazer http://67-72chevytrucks.com/vboard/s...d.php?t=676047 My new YOUTUBE channel.. Videos of my truck and a current walk around. Lyrikz74 Youtube channel *DONE! SOLD!* My 1971 stepside build thread My Build Thread UPDATED 6/11. DONE and sold.

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