The block has casting number3836233 which corresponds with a 1955 truck in the list I found. The rocker arms used now look exactly similiar to the old set used before the engine overhaul. Are there anything that indicates rockers before or after 1959?
I have a 38/38 Weber, and yes I experience it tricky and rich running. Its an expensive carb so I will try to clean it properly again and lower fuel pressure lower that recomended.
It's time to put it together again and check carb function and oil flow to rockers.