Thread: 427 Evacuation Question

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a vacuum pump is what some guys use they say work s better then the v u pan set up they pull abit at wot but never seen any one see how much they will pull you need two egr valves and two chrysler beather and if you have the nipples them your done if no nipples then it is a trip to the hard ware store for the pipe i think it 1/2 you need to cut it at a 45 about 1 to 2 inchs in would have to with what size of the collector and have the back side of the 45 to front of the engine to keep the ex psi working the valve need to work from draw as the ex gas pass by making a vacuum they do not work on the street with a ex know matter how big any back pressure will block the EGR valves and it will blow oil out your dip stick tub i put them in every race header set i made i tried this set up 3 times on the street with 3inch and 3 1/2 and 4 it never work i still think it could with two more bearther on a puke tank and pull from the tank but there could be some oil getting blow down thru your ex but still would not work that good on the street you would never see much vaacum