Overview Reviews Product Description Carburetor - Ultra Double Pumper - Model 4150 - 4-Barrel - 650 CFM - Square Bore - Electric Choke - Mechanical Secondary - Dual Inlet - Aluminum - Blue Anodized / Tumble Polished - Each Product Videos Custom Field Product Reviews Write a Review Write a Review × HOLLEY Carburetor - 650CFM Ultra Double Pumper HLY0-76650BL Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *