Re: Distirbutor vacuum lines

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Posted to Technical Discussion Forum on 6/3/2021 2 Replies

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The factory diagrams I have for both 1978 and 1979 both show a single port on the distributor vacuum advance.

Here is the 1978 F-150 351M [vacuum diagram] I have.

I don't know if there was a diff... Login to read more.

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