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Vacuum line relocation on Carb Style intake

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Old Dec 31, 2008 | 04:40 PM
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Default Vacuum line relocation on Carb Style intake

Ok I'm looking into swaping to a GMPP L92 intake w/elbow for my setup. My question is where to I route the lines that connect to the L76 intake just behind the throttle body? I have the MAP sensor and the Brake booster hose figured out, Just not sure on the rest of the stuff. Any pics or suggestions would be great.
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Old Jan 1, 2009 | 12:24 PM
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Originally Posted by 05JUDGE
Ok I'm looking into swaping to a GMPP L92 intake w/elbow for my setup. My question is where to I route the lines that connect to the L76 intake just behind the throttle body? I have the MAP sensor and the Brake booster hose figured out, Just not sure on the rest of the stuff. Any pics or suggestions would be great.
I hope I understand you correctly. I think you are talking about the hoses from the crank vent system. I have the same? intake setup except mine is carburetor, but regardless, they work the same way. I don't know if these pictures will help, but they show how I did mine. Basically, I did it like the engines used to be, with a breather on one valve cover and a pvc valve on the other. This lets it pull fresh air completely through the engine to get rid of moisture and fumes, for lack of a better word. I've seen some on here put a pvc on the tube on the valley cover, which would probably be acceptable, and I've seen breathers on the valley cover and pvc on the tube on the valve cover that I think you are talking about, but I like my way better, LOL. I chose the tube on driver side because it is baffeled, and then plugged the two you are talking about with rubber caps from parts store. Hope the pics help, and I hope I haven't completely misunderstood what you were asking . Ron
Attached Thumbnails Vacuum line relocation on Carb Style intake-cp42.jpg   Vacuum line relocation on Carb Style intake-cp46.jpg   Vacuum line relocation on Carb Style intake-cp66.jpg  
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Old Jan 1, 2009 | 10:02 PM
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Originally Posted by rojs234
I hope I understand you correctly. I think you are talking about the hoses from the crank vent system. I have the same? intake setup except mine is carburetor, but regardless, they work the same way. I don't know if these pictures will help, but they show how I did mine. Basically, I did it like the engines used to be, with a breather on one valve cover and a pvc valve on the other. This lets it pull fresh air completely through the engine to get rid of moisture and fumes, for lack of a better word. I've seen some on here put a pvc on the tube on the valley cover, which would probably be acceptable, and I've seen breathers on the valley cover and pvc on the tube on the valve cover that I think you are talking about, but I like my way better, LOL. I chose the tube on driver side because it is baffeled, and then plugged the two you are talking about with rubber caps from parts store. Hope the pics help, and I hope I haven't completely misunderstood what you were asking . Ron


Well, that's not exactly what I was looking for, but good info regardless. I have a catch can setup on my crank case ventilation. I am talking about vacuum line that connects on the driver side front of the intake, just behind where the TB bolts up. I assume it just has to be plumbed into the elbow with some hose fittings.
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Old Jan 4, 2009 | 05:22 PM
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put a t off the side port of the intake, or drill and tap another hole in the intake like the small port on the side.
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