Edelbrock VRS-4150 Carburetor 650 CFM 4-Circuit STD Booster - STD FinishEdelbrock VRS 4150 Race & Performance Carburetor #1306 650 CFM is street friendly but race ready. The 3. 75 tall cast aluminum main body fits all 4150 and 4500 carb flange manifolds without requiring an adapter plate. A street throttle arm, Moly coated throttle shafts and built in provisions for a standard GM three wire TPS mount add features to this carburetor that are ideal for any user. Multiple vacuum hook ups keep this carburetor usable on the