Here is a used HOLLEY 750cfm gas carburetor with vacuum secondaries. Not sure who done the work believe it was C&S but number on top is 3616. Good carburetor.
4 Barrel For Holley 750CFM Carb E-Choke Double Pumper Street Stripe Carburetor
Holley 750cfm vac secondary carb 080508s used
Holley HP 780 CFM 4 Barrel 4150 Gas Racing Carburetor #4542
NOS 1980's Holley Heavy Duty Racing BBC Mechanical Fuel Pump 12-454 USA Made
Holley QFT AED Racing Shear Nozzle Tube Type Boosters .180 Orfice
Holley CCS VR55 Racing Gasket Kit 2300-4500 Series Carbs 390-1050 CFM 2 Circuit
