5 quick operation and Maintenance Qs

Timing seems to be a non issue at this point. Still seems lean. Did you ever put vacuum to the vacuum advance with a hand vacuum pump to see if it holds. Should not leak down at all. I know you checked but worth one more good look over for ANY vacuum leaking. Including the choke pull off diaphragm.

Then you will need to dive into the carb for more fuel. Thorough cleaning of the jets- look real close inside too make sure there is no gunk or oxidation hanging around.

Another thing to investigate while looking under the hood is if the air is actually flowing through the radiator or is there an obvious path for the air to flow around. maybe put a light under the hood at night and look in the front with the hood closed. I also looked at my fan and realized I am running a steel flex fan, not the original solid fan. Something to look at I guess.