4 Barrel Billet Aluminum Carburetor Main Body - 4150 Double Pumper [Red] High performance fuel injectors

High performance fuel injectors

Speedmaster rocker arm adjusting nuts are high-quality polylocks designed for full roller rocker arms

they replace your existing worn or damaged valve seats

They are designed to work with factory

4 Barrel Billet Aluminum Carburetor Main Body - 4150 Double Pumper [Red] High performance fuel injectorsThis Speedmaster design features tubes instead of discharge nozzles that provide a more consistent fuel flow. 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.