DESCRIPTION :
Holley Carburetors: How to Rebuild
This 4150 Double Pumper carburetor is fully disassembled, except for the shafts and throttle plates from the baseplate If you do not perform carburetor service on a regular basis, you can see why it’s important to keep everything organized during disassembly It’s not a bad idea to take a few digital photos during your disassembly, and to bag and tag parts (primarily the float assembly, etc ) to avoid confusion during cleaning and reassembly
link in last pagee