Excellent condition Holley 4150 style carburetor with mechanical secondaries..  Built with the components and set up listed below.  Too much CFM for the intended application so selling it, very little time on it.  Carb was disassembled and cleaned before assembling for sale. 

Note:

1)  Float bowlsare not torqued down, just run in snug, fresh metering block gaskets.

2)  Float bowl levels were set up, but verify after installing


PRO 67107C - Proform 850 cfm main body. screw-in air bleeds, high-performance down-leg boosters.

                Air bleeds:  Outer/Idle 73

                                     Inner/HiSpeed,33

PRO 67156 - Proform Billet Baseplate for850/950 cfm, 1-3/4" diameter bores. 

HLY 20-78- Holley 30cc Pump Arms

                blue/green cams for pri/sec

                .033 /.037 pri/sec squirters

BLP 51241B-3R-FE - BLP Racing products metering blocks

                76/84 pri/sec jets

                6.5 primary power valve, secondary blocked off

Float bowls - Holley float bowls with brass floats


This Holley 4150 style carburetor is designed to provide optimal performance for your vehicle. With 850 horsepower capacity, it is perfect for those who want to take their engine to the next level. The carburetor features a Proform throttle plate and main body, ensuring smooth and accurate throttle response. The 4-barrel design provides efficient fuel flow to the engine, allowing for increased power and performance. Ideal for use in carbureted engines, this Holley 4150 style carburetor is a high-quality product that will help you achieve your performance goals. Whether you are looking to improve your vehicle's acceleration, horsepower, or overall performance, this carburetor is an excellent choice. So why wait? Upgrade your vehicle today with this top-of-the-line carburetor.