There are less than 1000 miles on this carburetor. It is clean and in great condition. 600 CFM wih electric choke. It has dual base plate bolt pattern to fit most intake manifolds. This carb is in great shape but is too small for my application so I have decided to sell it. Here is the description from the summit website. Edelbrock's Performer carburetors feature two-piece, all-aluminum construction for cooler operating temperatures and less warping. There are no gaskets below the fuel bowl level for fewer leaks, and no plastic parts or power valves to blow out. The carbs use easily changed metering rods for precise tuning, and the primary venturi booster is a bottom-feed design for smoother acceleration and better drivability. Price is $160 plus shipping PM me for more information.