Trying to figure out where some vacuum lines go. On the holley there is one for brake booster. other on carb don't know. Also 1980 distributor has 2 vacuum ports, where can i connect them to? Anyone help?

Thanks, Gonzz

 

On my holley, racing beat 12a streetport, the brake booster hooks up to the intake manifold. On the carb there are two vac hose conections, one for the metering pump which is on the primary bowl, and one for the vacumm advance for trailing ignition.