That carb has no timed vacuum port for vacuum advance, but even if you would decide you dont want to use it, many of the parts have value. (new floats, needle-seats, metering rods, jets, choke pull off, bowl) The early and late bowls are not interchangeable though.

I purchased some earlier style reman carbs a while ago. Early bowls are no longer available, and when they were, some where priced well over $100)