4 Barrel Billet Aluminum Carburetor Main Body - 4150 Double Pumper [Red] Silicon aluminum is the choice

Silicon aluminum is the choice for many of today's engine manufacturers because of its high fatigue strength and superior temperature threshold

5" axle features an 8

Speedmaster hoodies are the perfect way to let everyone know where you go for high performance aftermarket parts and accessories

Speedmaster hydraulic roller camshafts are offered in a wide variety of profiles

They are heat-treated prior to thread rolling and machining and are rated at a whopping 190

4 Barrel Billet Aluminum Carburetor Main Body - 4150 Double Pumper [Red] Silicon aluminum is the choiceThis 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.