Proform 67155BK 4150 Model
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adjustable secondary air flow cam bracket, timed and full vacuum tubes for accessories and tuning, slip link mechanical secondary linkage, and power valve blow out protection! Product Details: Component for use on Holley 650 thru 800 CFM Double Pumper with Mechanical Secondary applications, and PROFORM Carburetor Main Body, part number 67100C.
Adjustable Ratio Linkage Levers
Please review Specifications and the detailed fitment table for notes and exceptions.