I have a 70 GS455 AT and needed the vacuum port routing to the Quadrajet carb. Does anyone have this available or can point me to a location to where it is located? BDK
That would be in the 1970 Buick Chassis manual. Unless you have all the emissions devices hooked up (TCS), there are better and easier ways to connect the vacuum hoses. All you need is the vacuum connection at the rear to the vacuum tank on the firewall, and a single line from the carburetor to the vacuum advance on the distributor (ported or manifold). Also manifold vacuum to the air cleaner (if used)
Also manifold vacuum to the trans. modulator valve. Should be a "Nipple" on the rear of the manifold for this just behind the carb.
