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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
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Description
Edelbrock Thunder Series AVS Dual Quad Annular Boosters 500 CFM Carburetor w/Manual ChokeWith our innovative Annular Flow Booster technology; Edelbrock brings superior fuel atomization to all dual quad applications with the AVS2 500 CFM Carburetor #1904 that is specially calibrated for engines running two four barrels. Annular Flow Boosters deliver near EFI like drivability that you can feel as soon as you step on the gas. Fuel distribution is refined by eight equally spaced orifices in the booster rings that replace down leg boosters
With our innovative Annular Flow Booster technology; Edelbrock brings superior fuel atomization to all dual-quad applications with the AVS2 500 CFM Carburetor #1904 that is specially calibrated for engines running two four-barrels. Annular Flow Boosters deliver near EFI-like drivability that you can feel as soon as you step on the gas. Fuel distribution is refined by eight equally spaced orifices in the booster rings that replace down-leg boosters which simply dump raw fuel into the venturi. Flat spots are completely eliminated; and throttle response in the low-to mid-RPM range is improved tremendously with no sacrificing of that top-end power that Edelbrock is known for. AVS2 carbs are unaffected by engine backfires since there are no power valves to blow out. For fast and simple part-throttle tuning; metering rods and springs can be changed in seconds without carburetor removal or fuel draining. Our AVS2 carbs have the unique ability to hold a tune when compared to other carburetors. Your tuning and adjustments stay unchanged; so performance remains consistent. Updated primary and secondary booster clusters in the AVS2 offer the most accurate and up-to-date calibration available for today s fuels and octane levels. Additionally; our Qwik-Tune Secondary Air Valve design allows for limitless calibration of the secondary circuit. Adjustments can be with simple hand tools in seconds to suit your application. The AVS2 features a two-piece design that allows you to make float level adjustments or replace internal components without draining the fuel from the carburetor or removing it from the engine. The AVS2 500 CFM carburetor is available with electric (#1903) or manual (#1904) choke in satin or chrome-like EnduraShine finish. For small-cubic-inch single carburetor engines; order our specially calibrated AVS2 500 CFM #1901 (electric choke) or #1902 (manual choke). All AVS2 carburetors are designed; manufactured; assembled and calibrated by Edelbrock in the USA.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Good quality and definitely worth it for energetic dogs.
Color: Orange
The automatic moving and rolling action really grabs my dog’s attention, and the rope adds extra fun for chasing and playing. It helps reduce boredom and keeps my dog mentally stimulated, especially when indoors. The motion activation works well, and it’s a fun and engaging toy overall.
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Best Dog (Puppy) Toy I've Found
Color: Orange
This is a fun toy for me as well as my puppies! When it arrived I opened it right away. I was anxious to get my Pup's playing with something that wouldn't require me to play with them. I put it down and it was charged and ready to go. I had no idea what to expect. All three of my Pups were interested in it. (Which is unusual because two of them are Shih Tzu's and don't pay a lot of attention to most toys.) It's safe and really cute to watch. My youngest pup had been playing all day and was tired when I finally took a photo. I can't tell if the video uploaded correctly but if it did you can see how much fun it was. It is very durable and can actually turn itself over and go across the floor. It charges fast and will last a day and a half or two depending how much it's been used. It does go to sleep if no one is playing with it. They furnish you with an extra top and a fresh "rope." I really appreciate how much customer service is done with this item. I will watch for more of their items to purchase.
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Reviewed in the United States on January 27, 2026
★★★★★ 5
Buy 2 at a time for a fun experience
Color: Orange, Color: Orange
What’s better than 1 toy? Answer: 2 toys! I love using two at a time. More stimulation and fun! We use these to get all the energy out before nap time. They keep him occupied and running in two different directions. The rope part of the toy is the perfect size for him to grab onto. It came with a replacement for a wheel and rope and haven’t had to replace it yet. Toy has held up with daily play and still works perfectly.
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Reviewed in the United States on June 11, 2026
★★★★★ 5
How many dog toys have you bought that just laid on the floor unused?
Color: Orange
New husky has more energy than an entire pre-school - even being walked more than three miles a day wasn’t sufficient to drain her excess energy.
I threw the dice on this - and it’s AWESOME. Comes with an extra rope and an extra side piece. Rechargeable with a USB-C cable. When you turn it on, the blue LEDs flash, the entire device buzzes, bounces, and races back and forth across the floor. After a couple of days of uncertainty, my new husky LOVES this. She chases it around, grabs it by the attached rope and carries it from room to room.
After a short bit of activity, the toy goes into ‘sleep’ mode, until either the dog touches it again or a timer has elapsed, and then it fires up and starts buzzing and racing around the floor again.
From a full charge, the toy will keep your dog entertained all day. Bright orange color makes it much easier to find when it’s rolled behind the toilet (as it did this afternoon). Sturdy. Highly resistant to chew damage. If this one wears out or breaks, I’ll absolutely get another one.
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Reviewed in the United States on April 20, 2026
★★★★★ 4
Puppy interactive toy
Color: Orange, Color: Orange
It’s a great toy as it keeps my 5 month old puppy very entertained! It is pretty hardy and made of good material as she tries to throw it around and chew it. She does swing it around and the hard part will hit her. She doesn’t seem bothered by it tho lol good size and minimum noise
When I first introduced her to it she was a little scared but now she gets excited to play with it once it finishes charging.
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Reviewed in the United States on May 2, 2026