Complete rebuild kit for all Holley 4150 carburetors. This covers list numbers 4776 4777 4779 4780 4781 and all HP model carburetors. All non stick gaskets high flow power valves and needle and seats. This comes with float leveling instructions and mixture screw adjustment procedure.
Now available for vacuum secondary carburetors that have a primary and secondary metering block with center hung fuel bowls. Some list number like this are 75021and 3418.