Intake vacuum Ports

[bjde0b]

I am rebuilding my 302 and I need to figure out the appropriate vacuum lines coming out of the rear intake and the carb.

The carb is a Holley 2 bbl and the intake is stock. I will have power brakes as well. I am going to stick with standard distributor with a single vacuum port.

So, help me figure out what vacuum lines I will need to run, and where. Thanks guys.

[towtruckerfour]

On my 70 F100, I have the autolite 2100. There is one hose that goes from the distributor to a port on the passenger side of the carb. It doesn't have power brakes. On my 70 F250 with a 390, same thing for distributor. As far as power brakes, there is a hose that goes from the booster to a multiple port fitting on the back of the manifold. Hope that helps.

[bjde0b]

A little background. My carb has a small, the size necessary for the distributor and I have a single vacuum line port on the rear intake location. My dad back in the day routed the vacuum from the rear intake to the distributor and the carb was capped. So I am guessing I can run the line from the carb to the distributor and use the single intake vacuum for my brakes. Why are there vacuum trees with three or five take offs. What could you possibly use 5 ports for?

[fordman]

5 ports is for and emissions engine.