Howdy Back TIm:
Sorry I missed your point. I'm suspious of any rebuilt carb. In general., Holley is a good brand name. The risk is to put it on and try it as is. IF it is not ideal you will need to remove and dissassemble to determin what you have in the way of setting, cleanliness and gasket seal. You can do it now, or you may have to do it later.
It is my experience that rebuilt carbs are ready to run about 70% of the time.
Hope that is what you needed.
Adios, David