Pro Systems Alcohol Carb

I have a used carburetor that is in good condition set up for Alcohol by Pro Systems out of Michigan. It is a 1000HP and it flows 980 CFM. It was on a car I purchased and I don't know much about alcohol so I switched carburetor over to gas. I do have specs on it and it was working fine when I got the car. It comes with the regulator that is pictured. It was just freshened up by Pro Systems on 04/02/2013. Price is $500.00 shipped in lower 48 states from Hesperia, Calif.