318 stalling from idle

Originally off a 1967 273 man trans. Original jetting: 0.089" pri jet, 0.074"; sec jet.
#403 rods, 069/058/065. I am not sure if the power step is 0.065, or a misprint in my catalog. Very strange for the power step to be larger than the middle step.
This carb should work ok with some tuning.