Here's a HOLLEY 12r-4325B Vintage Dominator 1050 CFM List 4673 Annular Discharge Boosters and 50cc Accelerator Pumps.This great Carb is ready for your Large Cubic Inch Big Block Engine. Drag Boat Mud Truck Racing or maybe Nostalgia Street Rod or Ratrod Show Car. This Carburetor was working great the last time my friend raced it.He upgraded to a fuel injection and he cleaned the race gas out of this and put it in a box in his basement workshop. This was professionally upgraded to Annular Discharge and 50cc accelerator pumps .It still has the original early 1970's extended airhorns and it has numbers engraved in it Mod 4500 List 4673 and 1159 HP-54 .Look this over and ask any questions. You may be able to bolt it on and go, or it's usually a good idea to change the bowl gaskets so you can change jets easily. Looks like it's only missing one Plastic accelerator pump cam (easy to get cheap).Buy with confidence. This is the real deal. Call (952)854-5 seven eight six