Description
Holley Billet Baseplate 750 CFM has a 1 11/16″ Throttle Bore and will fit any mechanical secondary 650-800 CFM 4150 Carburetor. This is a solid billet aluminum baseplate and comes with number 172 throttle blades. The baseplate has 2 3/8″ vacuum connections, one on the front and one on the back, as well as a 3/16″ ported vacuum port on the front of the base.