1979 F-250 4x4 400ci standard tranny. i had a shop work on my truck, they left numerous vacuum lines disconnected includeing vacuum advance my truck runs awfull. I cannot find the orignal location for this connection I tried to hook it up to manifold vacuum no it seems to be advanced all the time. I went to autozone.com got a diagram for vacuum hoses and it looks like i am missing a vacuum restrictor. if anyone has any ideas please help
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