Engine Carburetor Upgrade Series Model 600 CFM Mechanical Secondaries Type Proform Engine Connecting Rod Bolt Stretch Gauge Tool 45 Degree Type Neck

45 Degree Type Neck

1/2 x 20 adapters

Fine tuning is accomplished by simply changing air bleeds not opening calibration restrictions with a drill bit

100 Inch Valve Springs

1-3/16 Inch Fittings

Engine Carburetor Upgrade Series Model 600 CFM Mechanical Secondaries Type Proform Engine Connecting Rod Bolt Stretch Gauge Tool 45 Degree Type NeckPROFORMs new 100 percent Aluminum Street Series Upgrade Carburetor is hand assembled in the U. S. The PROFORM Street Upgrade Carb Includes: Based on the wildly successful Billet Aluminum Street Series carburetors these Upgrade Series street carburetors are constructed of lightweight aluminum including changeable idle air bleeds for easy non permanent calibration changes if needed. Keep your drills in your tool box; fine tuning is accomplished by