SKU: 20314923038

650 CFM Double Pumper Carburetor - 0-4777S

Sale price$314.98 Regular price$349.98
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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Description

650 CFM Double Pumper Carburetor - 0-4777SOverview: Holley Double Pumper carburetors are a perfect performance upgrade for hot street cars and race vehicles. Double Pumper carburetors are an American icon when it comes to performance carburetors. From their roots as the premier carburetor on many factory muscle cars to powering thousands of vehicles across the finish line, the Double Pumper is a great choice whether you are burning up the street or the quarter mile. The Double Pumper is

Overview:

Holley Double Pumper® carburetors are a perfect performance upgrade for hot street cars and race vehicles. Double Pumper carburetors are an American icon when it comes to performance carburetors. From their roots as the premier carburetor on many factory muscle cars to powering thousands of vehicles across the finish line, the Double Pumper is a great choice whether you are burning up the street or the quarter mile. The Double Pumper is designed for use on lightweight vehicles with a manual transmission or an automatic transmission with a high stall and low rear end gears. The Double Pumper is available in a gold dichromate or tumble polished shiny finish and features dual accelerator pumps for additional fuel under initial acceleration; mechanical secondaries for great performance; dual feed fuel inlets for constant high volume fuel delivery and a manual choke for easy control of engine warm up. Don't trust your performance to just anyone, Holley is the only modular carburetor company that has been in business for over 100 years and has powered every NASCAR champion since the 60's.

Features:

  • Shiny finish for good looks
  • Optimized street/strip calibration that works out-of-the-box
  • Manual choke (Cable driven, hand operated) for precise cold start control
  • Mechanical secondaries for awesome tire turning performance
  • Dual accelerator pumps for additional fuel under initial acceleration
  • Dual feed fuel inlets for constant high volume fuel delivery
  • Intended for lightweight vehicles w/ manual trans or automatics with high stall & low gearing
  • 100% wet-flow tested by Holley technicians to assure it arrives ready to run!

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Barrels 4
Booster Straight
Brand Holley
Carburetor Use Performance and Race
CFM 650
Choke Manual
Condition New
Emission Code 3
Finish Shiny
Fuel Gasoline
Fuel Inlet Dual
Marine Use No
Material Aluminum
Model 4150
Primary Main Jet 67
Primary Power Valve 6.5
Primary Pump Nozzle Size 28
Product Type 4150 Model Carburetor
Secondaries Mechanical
Secondary Main Jet 73
Secondary Pump Nozzle Size 28
Supercharged Application No
Throttle Bore 1.688 inch
Vacuum Ports 1 timed (spark) port, 1 full, and 1 PCV port
Warning California Proposition 65
Warranty Limited 90 Day
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 20314923038

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Amazon Customer
Massapequa, US
★★★★★ 1
Won’t Fit No Matter What
Size: 9.5, Color: Cs05 White, Size: 9.5, Color: Cs05 White
These shoes don’t stretch so I was unable to get my foot in the shoe. They are my size, but the opening has no stretch so you can’t get your foot in the shoe. I tried several different ways and then realized even though the shoe is the correct size, the opening was too small. They made the opening for the shoe probably the same size on all shoes, so unless you have kids feet you won’t even be able to slide them on. I’ve never had a shoe I couldn’t get on. I’ve worn Sketchers no problem. This is design flaw and I highly recommend you don’t buy!
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Reviewed in the United States on April 19, 2026
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jana jones
Phoenix, US
★★★★★ 5
Really comfortable!!!
Size: 11, Color: New Black05
These tennis shoes are so comfortable!!! I would recommend anybody to get these, especially if you do a lot of walking they’re very light but have a good heal support and the soul is nice and soft and cushy.. They’re also so cute. I got the blue ones and red also.
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Reviewed in the United States on April 6, 2026
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tim zaharson
West Palm Beach, US
★★★★★ 5
i would recommend these shoes
Size: 11, Color: Black White 05
great shoes for the price. very comfortable...
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Reviewed in the United States on May 14, 2026
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The country charm
Massapequa, US
★★★★★ 5
Comfortable, Practical Everyday Cotton Shorts That Hit Most of the Right Notes
Size: Large, Color: 2 Pack - Navy
These Fruit of the Loom Eversoft cotton shorts are exactly the kind of go-to casual shorts you reach for when comfort matters more than fashion. They’re soft, simple, and dependable — great for lounging around the house, running errands, or just staying comfortable on warm days. The Eversoft cotton lives up to its name. The fabric feels genuinely soft against the skin and stays comfortable even after hours of wear. It’s not clingy or rough, and it breathes well enough to keep you cool on a hot afternoon. For everyday comfort, they’re noticeably better than basic cotton shorts that can feel stiff or scratchy. One of the features that makes these a practical choice is the pockets. They’re real pockets — roomy enough to hold your phone, wallet, keys, or whatever you carry on a quick outing. That’s worth calling out because a lot of lounge shorts feel great but skimp on usable storage. These don’t. The fit is relaxed without being sloppy. The elastic waistband with drawstring adjusts easily and stays comfortable through activity or inactivity. They don’t dig in or feel restrictive, which makes them easy to wear for sleeping, working from home, watching TV, or walking the dog. Build quality is solid for the price point. The stitching holds up through wear and washes, and the shorts don’t lose shape or shrink dramatically after laundering. They’re not going to feel like premium athletic gear or performance fabrics, but for what they are — casual cotton shorts — they stay reliable over time. These aren’t going to be your choice for intense workouts, formal occasions, or anything that demands technical fabrics, but for everyday comfort and simplicity, they’re hard to beat. Soft, breathable cotton with pockets and a dependable fit makes these shorts versatile and easy to wear on repeat. Overall, these Fruit of the Loom Eversoft shorts are exactly what most people want from casual summertime wear: comfortable, practical, and dependable. Five stars for everyday use and solid comfort.
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Reviewed in the United States on December 15, 2025
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Brian C
Battle Creek, US
★★★★★ 5
Comfortable Everyday Cotton Shorts
Size: XX-Large, Color: 2 Pack - Black
Soft fabric, good stretch, and a relaxed fit that lands at a perfect length, these shorts hit that sweet spot between lounge wear and quick‑errand gear. The waistband has enough give without feeling flimsy, the pockets are actually usable, and the overall feel stays comfortable through the day. For the price, they’re an easy pickup that delivers exactly what you want from simple cotton shorts.
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Reviewed in the United States on April 9, 2026

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