Guys I’m no mechanic but that hose on the valve cover that it looks like paper stuffed in it is a Positive Crankcase Valve. It was designed to take unturned gas out of the crankcase and recycle it through the carb. Some after market air cleaners have an outlet on them for that. The distributor has a vacuum advance. The more gas you give the are plates with springs that spin out and advance timing so the vacuum advance on the distributor to the carb. Pertronix makes an electronic pickup to do away with points. Looking at that carb looks like it needs a rebuild or replacement. Again, I’m not a mechanic but to me these need attention to make the engine right.

1946 1/2 ton