9.500 in fuel line center to center length. High speed air bleeds are not included to allow for custom racing calibration. The air bleed holes are drilled and tapped if a calibration change is required. This carb does not have notched floats or jet extensions.
Holley 4150 Classic HP Carburettor CFM 390 Square Bore Dichromate
Holley HP carburetors have been the standard in racing carburetors for nearly two decades. Powering the biggest names in NASCAR to the Saturday night racer, HP carburetors are the perfect choice for all types of motorsports. Classic HP carburetors are available from 390 to 1000 CFM and feature a contoured venturii inlet for balanced air flow, screw in air bleeds for precision tuning capabilities, high flow metering blocks and Dominator style fuel bowls which allow pluming from either side for ease of installation. Holley HP carburetors are the standard for square bore race carburetors.
