This is a USED Holley 650 CFM Carb. It is a holley 6425 that has been bored out by C&S Carb # 4168 to be 890 cfm. The carb spacer is included. It probably needs a rebuild kit.
Holley 6425 650 CFM IMCA UMP WISSOTA LMS MUD Truck Rat Rod NHRA IHRA K&N ARCA
HOLLEY #6425 650 CFM 2 BARREL CARBURETOR DELUXE REBUILD KIT
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Genuine Holley 4160 750 CFM Carburetor (shiny finish). Holley Part# 0-80508S
