What is the best carburetor for a big block Chevy?

Holley’s vacuum-secondary 850 (PN 0-80531) makes a good street carb for a Chevy big-block and can deliver the goods on a 750-horse engine if correctly used!

What cfm carb do I need for a 350?

A 600-cfm carburetor may perform quite well on a stock 350 Chevy. However, the minute you start weaving in power adders like a hotter cam, a dual-plane performance intake manifold, and aluminum heads you’re going to need 700-750 cfm.

What happens if your carburetor is too big?

If the carburetor is “too big” then the engine will not be able to keep enough air flow through the barrels for fuel delivery to occur. Which would explain why the engine would work at highway speeds but struggles at low rpms.

What is the best performance carburetor?

Best Carburetor (Review) 2020 – Top Picks & Complete Guide

Edelbrock 1406 Performer 600 CFM Carburetor – Optimal for Chevy 327.
Holley 0-7448 Carburetor – Optimal for Chevy 350.
Caltric CARBURETOR – Optimal for off-road and sports vehicles.
Waverspeed 2 Barrel Carburetor – Optimal for Ford 302.

How much HP can I get out of a 305?

450 hp
I completely agree that a 305 can be built to make 450 hp. That’s not too difficult. The engine is limited to smaller heads with 1.94-inch valves because larger 2.02-inch valves won’t clear the cylinder wall.

What’s the best carb for a Chevy 305?

Edelbrock 1405 is the best carburetor for a Chevy 305, in my opinion. It is efficient, super light and also very easy to install. If you are looking for a carburetor that’s highly responsive and efficient then Demon 1900 can be a viable option. It idles at 800 RPM and comes fine-tuned.

Which is the best carburetor for a Chevy 350?

There’s an electric choke in the carburetor which accounts for boasting 600 CFM (cubic feet per minute). This carburetor offers both electric and manual choking options. Electric choke is ideal during winters. It warms the engine up in no time and mixes the fuel well. The metering rods in the carb help transition between the circuits firmly.

What kind of carburetor do I need for a 500 CFM engine?

Even with about a 10% cushion, a 500 CFM carburetor will handle this engine great. If you try this formula yourself, be honest with how much rpm the engine will see. You’d be better off with a carb smaller than needed rather than something oversized that can lead to poor drivability and performance.

Which is the best carburetor for a small engine?

Edelbrock 1406 is one of the most reliable carburetors for engines with short strokes. It can also be used for big bloke engines. However, this carb only works for engines with short displacement.

How to get 350 horsepower out of a 305 Chevy small block?

Bolt a 500 cfm carburetor to the manifold atop the nitrous plate, and install a GM High Energy Ignition (HEI) distributor with 8 mm plug wires. Use a set of high heat-range plugs that can withstand the nitrous, and use a nitrous-compatible ignition control box to retard timing while running under nitrous.

What kind of CFM do I need for a 305?

My car came with a 305 when I bought it. It had an Eddy intake with a Holley 600cfm four barrel and it ran just fine. What brand carburetor and what size in cfm will perform nicely for a 76 stock 305 V8 to be used mainly for a daily driver? Rebuilding the original Rochester is an option. Click to expand…

Which is the best choke for a Chevy 305?

Holley 750 CFM has an aluminum finish and an electric choke meant to work flawlessly and for a long time. It is a good fit for 4 barrel applications and incorporates a power valve blowout protection as well. Electric Choke: It’s believed that electric chokes are better than manual chokes, making this beauty the right choice.