axel breaker earl
+1y
Welcome 89b2200JN,
These trucks have a bunch of vacuum hoses, as you already know, so the first thing you need to do is follow them from their sources and to the devices they control to make sure you don't have any vacuum leaks. There are 4 that hook up to the air cleaner in various places on it, and there are a couple that hook to a device under the intake manifold.
If you haven't done this yet, pull the air cleaner off (you need to remove 5 or 6 bolts or nuts, and the 3 big hoses on the front of the air cleaner, and the 4 different vacuum hoses that attach to it.
You can then see the carburetor then, believe it or not! Now you can do a better job looking for broken or missing vacuum hoses.
If you can take some good CAMERA pictures and post them here, we might be able to help you get any of the hoses that are missing or hooked up wrong, back in their place.