Sbc 350 vacuum hose help

Truck82 said:

Are those vacuum line going to the cruise control right now?

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Truck82 said:

When you say the small trans line I’m assuming you mean the line coming from the transmission modulator. Correct me if I’m wrong. Then yes, it goes to the port on the back of the intake. Where does the other line come from?

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Ryanbrown36 said:

Yes it is a steel line up until the top of the passenger valve cover and I was going to run rubber hose from there to the intake if that seems alright?

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Truck82 said:

Yup, that’s exactly what I did. My swap was a 6.2 diesel to a 350. Very similar to your swap

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Ryanbrown36 said:

Ya there is a lot alike, what’s your opinion on what to do with the cruise control vacuum lines, is it possible to make that one line and run it to the carb?

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3 Ton said:

Good lord, my 78 has one vac line, carb to dist.
Stuff shore changed in a few years.

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3 Ton said:

Good lord, my 78 has one vac line, carb to dist.
Stuff shore changed in a few years.

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Truck82 said:

Unfortunately I can’t help here. My cruise control doesn’t work so I just pulled all the lines going to it to clean things up a bit. I’m assuming your talking about the two lines your holding in your picture?

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Ryanbrown36 said:

Ya I’m actually not sure if mine works or not as I only drove it a few times before doing the swap so will leave it for now. What’s your brake booster situation? I don’t see any traditional brake booster like the gas trucks came with.

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Truck82 said:

Original hydroboost brakes. No vacuum needed. I’ve never seen any traditional booster on a diesel either.

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Mines leaking a little and I should probably rebuild/replace it soon.

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