Has anyone use a Prosystem Carb

I bought one for my 572 its an alcohol 1120cfm Patrick seems like a gown to earth guy with good info i havent tried it yet as i have a little more to go before the 572 is ready to drop in, i researched alot before spending the money and it seemed like a good investment, check out youtube and yellobullet and moparts for vids and responses from sv1 users