Product details:
Proform Parts 67218: Carburetor Main Body, Holley, 1,050 cfm, 4150, Mechanical Secondary, No Air Horn, Each - Want to upgrade your street carburetor to a high performance race carb but don't have the means to do a complete carb swap? If you can turn a screwdriver, you can get 25 to 50 HP from these Proform main bodies. With no air horn, choke tower, or choke control to restrict airflow, they deliver extra power easily and affordably.