For decades, classic Holley carburetors have been a go-to choice for car enthusiasts around the globe. If you're looking to give your stock or mildly modified vehicle a performance boost, you can't go wrong with the iconic Holley look. The Holley 0-80531 model is expertly calibrated to work seamlessly with GM's 502 crate engine. With dual feed fuel inlets, you can rest assured that you'll have all the fuel you need. The vacuum secondaries and electric choke add to its versatility, making it suitable for a wide range of applications. Plus, it's finished with a Gold Dichromate coating, ensuring both durability and that timeless Holley aesthetic. When it comes to performance, you want to trust a name with a legacy—Holley has been a modular carburetor leader for over a century and has powered every NASCAR champion since the 1960s.

• Instructions for Part# 0-80531
• Carburetor Numerical Listing for Part #0-80531

• Gold Dichromate finish for corrosion resistance and that classic Holley style
• A performance upgrade suitable for stock to mildly modified vehicles
• Universal calibration for easy installation; perfectly calibrated for GM 502 crate engines
• Factory preset electric choke for hassle-free startups
• Vacuum secondaries designed to work with a wide variety of vehicles, compensating for different weights, gearing, and transmissions for smooth operation
• Dual feed fuel inlets provide consistent high-volume fuel delivery
• Compatible with GM, Chrysler, and Ford A/T kickdown linkage (additional parts may be necessary)
• Power valve blow-out protection included
• 100% wet-flow tested by Holley technicians to ensure it arrives ready to run!

• Barrels: 4
• Billet Color: None
• Booster: Down Leg
• CFM: 850
• Choke: Electric
• Circuit: 2
• Emission Code: 3
• Finish: Gold Dichromate
• Fuel: Gasoline
• Fuel Inlet: Dual
• Material: Zinc
• Model: 4150
• Primary Main Jet: 78
• Primary Power Valve: 4.5
• Primary Pump Nozzle Size: 40
• Product Type: 4150 Model Carburetor
• Secondaries: Vacuum
• Secondary Main Jet: 82
• Supercharged Application: No
• Throttle Bore: 1.6875 inch
• Warranty: Limited 90 Day

• This carburetor features a square bore flange bolt pattern. It can replace Holley, Edelbrock, Carter AFB, and Autolite style carburetors with a 5 3/16" x 5 5/8" bolt pattern. If your intake manifold is of the spreadbore style, an adapter will be needed to install this carburetor, similar to the Mr. Gasket #1932.