Finally I have a brief update on my carb tuning. I changed the rods to the 64/56 rods. I noticed a slight part throttle hesitation, so I changed from the green springs to the silver ones which step up the rods at 8 inches of vacuum. I had a chance to drive it about 30 miles today, and the hesitation is gone. I pulled a different plug and it looks a lot better. The plugs have not been changed, so they still have some soot on them.
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