Thanks. I don't trust my rusty rebuild skills, and that carburetor is still 50 years old. I hesitate to put more old parts on the truck.
Different opinion on the carburetor:
Find an original 350 Chevrolet cast iron intake, and an original used Rochester Q-Jet from the years 1968~1974. Rebuilt the Q-Jet.
Take the wife out to dinner (several times) with the money you saved.
The imitation AFB has only a single advantage over the Q-Jet (it is shiny). Well, it also impresses the 16-year-olds at the car show.
Initial cost, driveability, fuel economy, power, and reliability ALL are wins for the Q-Jet.
Jon