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9 Best Carburetors For 350 Chevy – Reviewed + Buying Guide

If you are still driving in a car outfitted with a Chevy 350 and are seeking a suitable carburetor for the Chevy 350, you have come to the right spot. If you asked several skilled technicians whose engine remained GM’s company standard for a great many years, they might enthusiastically declare the Chevrolet 350 as a small-block engine. 

Except for the Geo and Saturn, practically all American General Motors units employed this motor well over decades. Nonetheless, the Chevrolet 350 has already been replaced by the Generation III LS in 1997, while the GM affiliate in Missouri continues to produce it as a factory version.

Several users change the carburetors on this car for many reasons other than breakdown. They might do so to boost the effectiveness of their engine. As a result, if you possess this kind of engine, you may discover that you are seeking the finest carburetor installation for this engine occasionally.

Now, because most of you may not be familiar with the technicalities of a carburetor or how to choose the best one, we have examined and evaluated a range of carburetors for Stock 350 Chevy. According to our analysis, the best carburetor is the Edelbrock Air Valve Secondary Electric Choke Carburetor. Recently we also talked about the Best Camshafts for 350 Chevy and in this post, we’re going to mention the Best Carburetors for your 350 Chevy.

This article will help you discover the various possibilities available based on your preferences and budget, as well as what to look for when choosing a carburetor to let your engines roar again.

So, without further ado, let’s get started on the list.

Best Carburetor For 350 Chevy – Reviewed + Buying Guide

All the products mentioned here are available online on amazon.com.

1. Edelbrock Air Valve Secondary Electric Choke Carburetor

  • Robust design and structure
  • Durable and easy to install
  • Might require some additional parts for proper experience

Product details:

  1. Designed and calibrated for optimum marine performance
  2. Single feed fuel inlet with air valve secondary type
  3. Shiny silver finish and calibrated for gasoline

I purchased this carburetor, and it was a joy to install. However, you must consider a few other factors. I’ll get to those things later. The most difficult aspect of this installation was running the wire for the choke and it was that simple. 

It took me roughly 90 minutes from start to finish. You’ll want to read the handbook thoroughly, but I’d recommend spending some time watching the videos on their website to get a sense of how simple it is. The gasoline inlet is on the left rear, facing straight out that’s a tight turn.

You could need a 90-degree banjo bolt to spin it, or you could buy a fuel line kit like part # 8126, 8131, or 8134, or another aftermarket option, but I’d go with Edelbrock. I installed a fuel pressure regulator, as some people recommended, and it’s also indicated in the instructions. 

You may also require mounting studs, such as Part # 8006, 8008, or 8024. You may also require the automatic transmission kick down bolt/adaptor, and verify your manifold type to ensure you do not require an adapter.

Order a new throttle return spring or check to see if yours is in excellent working shape. I had to add one because the previous one wasn’t powerful enough and wouldn’t return to low idle and would remain on high idle. 

It was the simplest carb installation I’ve ever done. It’s been 6 months since I installed it, and it’s still going strong.

2. Holley 0-7448 Model 2300 350Cfm

  • Resistant to corrosion
  • Easy to install
  • The air cleaner is not suitable for a 350.

Product details:

  1. Gold Dichromate finish on fuel bowls for corrosion resistance
  2. Intended as a stock performance replacement for 2-bbl street applications
  3. Manual choke for precise cold start control

This was purchased for a 1973 International pickup with a 345 that belonged to a neighbor, and it bolted on and started right up. I have yet to really get it out and try it, but so far all indications are that it will function considerably better.

Much better than the stock carb that I have been working with for years and which appears to be poorly designed. One thing to keep in mind is that the air cleaner no longer fits because this one has a larger top that is roughly 5″ across. 

The local auto-parts store had an air cleaner that might work, but it is so large that it would touch the engine’s water housing, so I am looking into purchasing a spacer. Because there were only two vacuum lines required and no emissions testing available where I reside. 

I was able to eliminate all smog controls and substantially simplify the routing. The OEM throttle and kick-down cable system bolted right up with no modifications required. 

Holley electronic choke kit and Holley gasket 108-52 were added, both of which are highly recommended for simple starting and protecting the carb from heat significantly better than the factory gasket.

3. New Carburetor For Type Rochester 2GC 2 Barrel Chevrolet Chevy

  • The metal body is strong
  • The size of the parts are perfect and fits perfectly
  • The pre-installed gasket might be leaky

Product details:

  1. Large Base – This is the large base bolt pattern 3 11/16 x 2 1/16 inches
  2. Heavy Duty Metal Construction
  3. Gasket Fuel Filter Pre Installed

I replaced my Rochester Quadrajet with this 2GC and utilized a Mr gasket 4 to 2 barrel adapter for my intake on a Chevy 350. (5.7L). I encountered issues with the 4 barrels while ascending and descending slopes with fuel flooding and running out. 

I was able to run up and down hills without losing a beat with this carburetor. Improvement of 100 percent and considerable benefits in fuel economy The only changes made were to the choke and idle.

It should be noted that this carburetor is longer than a quadrajet, and your existing air cleaner will not operate without an adaptor, which can be purchased from an auto parts store for $10. 

I tried it again in my neighbor’s truck, and with the taller carb, adapter, and stock air cleaner, I couldn’t close the hood. I’ll need to adjust the hood or get a shorter air cleaner. 

4. Quick Fuel 600 Cfm 4 Bbl Elect. Choke

  • Customer support is great
  • Strong and well-designed aluminum body
  • Not for anything bigger than a 350

Product details:

  1. Quality Quick Fuel products you can count on
  2. Made from quality materials
  3. Durable and long-lasting

An excellent-looking carburetor that runs perfectly out of the box. Every carb will now require fine-tuning to match each engine, which, like snowflakes, has different components added for performance, etc, so no two are alike. 

I bolted everything down, filled the fuel basins, and started it up. Once it’s warmed up, you can fine-tune it with a few simple changes and you’re ready to lay some rubber.

With its all-aluminum body and natural shining appearance, the carb offers a really attractive look to your engine. It’s almost a shame that it’s hidden by an air cleaner. It is very adaptable without the need to replace springs, etc. 

When I called to inquire about which carb would be best for my customized 350, the Quick Fuel Tech line was very knowledgeable, and I didn’t have to wait long on the phone to speak with them.

Arrived on time and in excellent condition. I removed the old Holley and installed the new QFT SL-600, cranked the engine a few times, and it fired up and ran perfectly. 

I took the car out without making any adjustments, and it pulled hard through all of the gears. My 350 came alive and ran and idled better than it ever had before thanks to the new QFT, Slayer carb.

5. Jet 35002 Rochester Quadrajet Stage 2 Carburetor

  •  Quite cheap compared to other products of this category
  • Fits flawlessly
  • Prone to leaking, might need several repairs

Product details:

  1. Includes all features of Stage 1 Q-jet
  2. Offers improved idle quality as well as instant throttle response
  3. Offers maximum torque and horsepower

This was installed in my 1985 Olds Cutlass Supreme with an SBC 350 cid / 340 h.p. engine. It started right up and fixed all of my old q-troubles. jet’s When the back two barrels are open, the idle is very smooth, as is the transition. 

Additional than adjusting the idle, no other modifications were required. I needed this carb for my father’s newly purchased 1978 Chevy truck when I was a teenager, but I couldn’t afford it at the time. 

It’s a wonderful deal now that Amazon is at your fingertips. You may need to tweak the electric choke. This carburetor was designed by General Motors and is intended for Chevrolet automobiles and trucks. No more holly, eldebrock, or carter carbs.

This carburetor was professionally fitted, and it’s fantastic. Idles and runs flawlessly. My ancient Quadrajet would never start easily when it was already heated. This carburetor works flawlessly, whether the engine is warm or cold, simply turn the key and it starts right away. 

I’ve previously purchased refurbished Quadrajets from other rebuilders only to be disappointed. This carburetor is ideal.

6. Alavente 2 Barrel Carburetor for Type Rochester

  • Provides excellent horsepower
  • Fits perfectly
  • The installation process is complicated so I would recommend getting the help of a mechanic.

Product details:

  1. Made of high-quality zinc alloy
  2. Heavy-duty metal construction
  3. Add 5~10% horsepower

Installed on a 1977 Bronco with a 302 engine. I had to make one little modification by replacing the power valve housing on the bottom of the carb. It’s not a huge deal. The linkage was a perfect fit for the C4’s automatic transmission. 

It included a new base gasket. It was simply bolted on, fired up, and driven; no other adjustments were required. Idle mode and air/fuel ratio appeared to be fine. 

Aside from that if your car or truck has an original model A/C system, consider purchasing an idle up solenoid to boost the RPMs when the compressor clutch kicks on and off at stoplights or drive-thrus.

On a freshened-up Chev head, it worked perfectly right out of the box with no adjustment. If your application used a manual thermal choke, you must take that into account. 

I didn’t find an easy way to make it manual without considerably altering it. The choke housing fitting appears to bleed from the idle circuit. Wrapping the exhaust manifold with copper tubing between the air cleaner housing and the choke mechanism appears to be a decent alternative.

7. Edelbrock Secondary Manual Choke New Carburetor

  • The best thing is it is made in the USA
  • Easy to install
  • The product overall is not very sturdy

Product details:

  1. Designed and calibrated for optimum marine performance
  2. Single feed fuel inlet with air valve secondary type
  3. Shiny silver finish and calibrated for gasoline

I installed it on my 1965 Ford Galaxie with a 390. The engine is mildly constructed, bored, has a.495 comp cam, performance cast iron heads, a performer 390 Edelbrock intake, MSD ignition, shorty headers, and a full 3-inch exhaust with flow masters. 

It created a lot of power, and it performed just fine with a Holley 4150 I had on it. This Edelbrock carburetor brought my engine to life; it’s like driving a completely different vehicle. It was simple to install, and the music out of the box was so good that I wouldn’t dare mess with it.

It runs wonderfully, with significantly more power and smoothness than the one it replaced. The only change I did was to adjust the idle screw slightly. I just altered it twice with minor modifications to get it exactly the way I wanted it. 

You can’t go wrong with this carb for any moderately constructed engine under 400 ci. It’s not often that I’m as taken with a product as I am with this one. You can’t go wrong with this easy-to-use, made-in-the-USA product.

8. Auto Parts Prodigy New Carburetor Two 2 Barrel Carburetor

  • Works instantly
  • Extremely easy installation process
  • Needs a bit of working in its design

Product details:

  1. Aftermarket 2-Barrel Carburetor Replacement
  2. Heavy Duty Metal Construction
  3. Includes Mounting Gasket and Seal

Tear down this wall, said Mr Gorbachev, and that’s exactly what the makers did with this carburetor: they tore down the wall of patent protection and/or bias in order to design the best 2-barrel carburetor money can buy. 

One that combines the best aspects of both the 2100 and 2150 without fear of infringing on anyone’s ideas because it is all their own. My Jeep CJ7 has never run better since I installed this turn-key carburetor. 

That’s all I did: install it without tweaking, and presto: perfection. This is the third carburetor I’ve installed: two “master” rebuilt carbs were installed by professionals, and this one I did myself. 

The other two never worked properly despite many dollars invested, and this one cost $98 plus a $5 brass fitting to connect my thermostatic line to theirs and electricity to the choke, and EVERY penny was well spent.

It bolted right on, and installation was simple. I expected the engine to take a long to fire with an empty carb, so I was astonished when it turned over three times and then died. I had to increase the idle slightly when the engine warmed up, but that was it.

9. Carhub Carburetor Replacement for Briggs Stratton

  • The pricing is the best part of this product
  • Easy to install
  • The plastic gas line is prone to leaking

Product details:

  1. carburetor Replacement for Briggs & Stratton 31H777 models
  2. carburetor for 13.5HP Vertical Shaft Motor 
  3. Replacement for Briggs & Stratton Intek

It’s still difficult to comprehend that an entire carb assembly can be purchased for the price of a replacement pilot jet! This was a bolt-on replacement for a Chevy 350 in which the owner had used ethanol and the rubber tip on the needle valve had melted. 

The new carburetor was fitted on and the mower was up and running in 10 minutes. I was a hero right away, and I got a 160-acre hunting/fishing lease to prove it. All for under $20.00.

I was blown away by the value of this product; I still can’t believe the pricing was that low. It was quite simple to install, and when I turned the key, my riding mower began nearly instantly. I strongly recommend this over rebuilding your old carburetor.

A carb rebuild kit is almost as expensive as this carb, so I took a simple way out and just ordered this. Very simple to install; no mixture modifications are required. All you have to do is drill a slightly wider hole in the throttle governor grommet. One of the levers has a white plastic grommet on it.

What to consider while buying a carburetor?- Buying Guide

The market is still flooded with many kinds of carburetors suitable for a Chevy 350. As a result, anyone looking for the best carburetor replacement may find the selection criteria a little perplexing. It would assist in determining the following vital aspects to check when picking an appropriate carburetor to make the task easier for you.

1. RPM range

When purchasing a carburetor, you should be aware of your engine’s lowest and highest range of RPM as either of them are significant. You must also be aware of the kind of transmission and the flash RPM of the converter. Here’s how to reset the transmission control module in your Chevy.

Take into account that the engine will not be satisfied and it’s dangerous for the engine if it is operating at its maximum torque. In terms of RPM, Edelbrock Air Valve Secondary Electric Choke Carburetor offers a wide range of RPM, and is it is the most suited for a 350 Chevy.

2. Manual Choke 

The manual choke, on the other hand, requires airflow modification and might be challenging for some people. However, if someone is comfortable with using a manual choke, then he will not be having any trouble with it. 

One disadvantage of the manual choke is that it requires you to idle up the engine before starting it. However, if you want to go for a manual choke then Holley 0-7448 Model 2300 350Cfm is the best choice for you.

3. Electric Choke

If you own a vehicle that dates before the versions that had electronically controlled fuel injection systems, it might be having a manual choke. Hence, whenever it concerns choke kinds, you can choose between manual and electronic chokes. 

Because it is connected to the circuit, the electric choke can be directly controlled. As a result, the electric choke eliminates the necessity to modify the airflow. Quick Fuel 600 Cfm 4 Bbl Elect. Choke is the best option for electric chokes.

4. CFM Calculation

When selecting a carburetor, you should also evaluate the “cubic feet per minute” (CFM). Your engine needs a special CFM measurement, which may be calculated as:  Cubic Inches multiplied by RPM multiplied by Volumetric Efficiency/ 3456

The average stock engine has around 80% flow rate, while refurbished engines will have about 85 percent. Engines used in race cars generally have a performance range of 95 to 110 percent.

In terms of CFM Edelbrock Air Valve Secondary Electric Choke Carburetor is certainly the best carburetor.

5. Design and built-quality

When selecting a carburetor, you should also evaluate the carburetor’s design and build quality. When looking for a carburetor, pick the one that is tough and durable, as well as resistant to corrosion. 

Thus, you can prevent corrosion damage or the advent of carb deterioration, which can cause leaking. Holley 0-7448 Model 2300 350Cfm has a heavy-duty body and is corrosion resistant which is perfect.

Our Verdict

The Chevrolet 350 is a great engine that requires a great carburetor. Furthermore, it consumes a lot of fuel to function. As a result, it is quite expensive to invest in. 

However, it is a tried and true vehicle, and if coupled with a decent carburetor, the Chevy 350 would undoubtedly produce a stunning performance. As a result, if you own a Chevrolet 350, you must invest in a high-quality carburetor. 

We evaluated and tested a variety of carburetors for the Stock 350 Chevy, and the best carburetor, according to our findings, is the Edelbrock Air Valve Secondary Electric Choke Carburetor.

Frequently Asked Questions

This is a common problem that people usually face and especially for them we have made the buying guide section. But you don’t want to go through the hassle of understanding the technicals then simply go through the review section until you spot the right one.

According to our trials, Edelbrock is certainly a better choice over Holley. However, depending on the specification and preferences one might find Holley to be better.

In ideal conditions, a 650 cfm carb can support around 450 to 470 horsepower.

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