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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21
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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
4.8 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
"Outstanding support and a seamless process!"
Great experience with Asurion insurance through Amazon. I wasn't sure how to register my items for the monthly plan, but the customer support team in the chat was incredibly efficient and guided me through the entire paperwork process smoothly. Furthermore, the service I received at the repair shop (Break Fix) was excellent. The whole process was seamless, and I received my digital gift card without any issues, which I’ve already applied to my Amazon account. I am very grateful for their professionalism and how easy they made everything. Highly recommended!"
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Reviewed in the United States on June 10, 2026
★★★★★ 5
Received giftcard money to replace my plan-protected malfunctioning motherboard
I've been subscribing to the Asurion protection plan for a while. Recently, an Asus Prime PC motherboard I had bought a few months ago on Amazon stopped working well. I ended up considering filing a claim with Asurion to see if they would either fix/replace it or issue the purchase price money, so I could buy the failed electronics replacement component again for my custom-built PC. I went to the protection plan's website and started the claim filing process but couldn't find the category my failed component would be under in order to select it from the drop-down list. I ended up messaging the live customer service. The chat messaging was somewhat slow, the agent told me they were experiencing some communication delays throughout their systems. Ultimately, the agent was very kind and understanding, and completed the claim filing process for me on her side by asking me to provide the necessary info such as the item's product name, date of purchase, price before taxes, etc. I received a printable UPS shipping label in the email, printed it, and returned the item in the mail. Approximately 2 days later, I received an Amazon giftcard code in the email with the dollar amount equal to the item's price before the sales tax. Then I redeemed the giftcard code on the Amazon page and proceeded to apply the giftcard money to my next purchase of a replacement Asus prime motherboard, and it all worked out successfully. Therefore, I had no issues with the protection plan service and recommend it to others.
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Reviewed in the United States on May 24, 2026
★★★★★ 4
Fast and easy but I dont trust the process to be fully automated.
The process was very smooth and fairly quick. The only challenge I had was that the CLAIM status showed complete but I had to manually go look up the status. There was no email or notification it was closed. After manually checking the status, I called customer support and they said since I called in, they would process the payout. I wonder if I didnt call in if they would have processed it? Also, the phone rep said they would issue me a amazon egift card but then the next day I received a email saying they mailed out the payout. Very poor communication but so far the process was easy and fast.
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Reviewed in the United States on April 1, 2026
★★★★★ 5
Nice to know you have full protection
After a sever thunderstorm took out my cable modem, It was nice to be assured I had replacement coverage for it. Filing the claim was effortless and the process to return the item was no issue at all. My only concern is that the cable modem is a CRITICAL piece of equipment for any individual or business. A sense of urgency on the behalf of Asurion to recognize this and expedite the replacement process would have been appreciated. No technician repairs these modems. Always cheaper to replace, especially one that the failure was attributed to an electrical storm.
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Reviewed in the United States on May 9, 2024
★★★★★ 5
Will always get the warranty
Easy to do, they could not fix it and refunded my money via an amazon gift card.
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Reviewed in the United States on April 23, 2026