Holley 650-800 CFM Double Pumper Base Plate Assembly. This new base plate assemble fits 4150 series double pumper with TWO CORNER IDLE, 650-800 CFM and 1-11/16" throttle bore/plates marked 172.
Holley 650 - 800 CFM Double Pumper Four Corner Base Plate Assembly - Square Bore
AED/Holley 650 - 800 CFM D/P Four Corner Base Plate Assembly - Square Bore
AED/Holley 650 - 800 CFM D/P Two Corner Base Plate Assembly - Square Bore
Holley 650-800 CFM Blue Non Stick Throttle Body Gasket.
Holley 650-800 CFM Blue Non Stick Throttle Body Gasket. Five Pack.
Holley 650-800 CFM Blue Non Stick Throttle Body Gasket. Ten Pack.