650 CFM Double Pumper Carburetor - 0-4777S
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 6 - Jul 11

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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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Kay Cas
Phoenix, US
★★★★★ 5
Comfortable
Color: White, Size: Queen (Pack of 2)
Omg! I love this pillow. I have a hard time finding pillows comfortable, this is the best pillow I’ve purchased. Definitely worth it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
M
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M
Omaha, US
★★★★★ 5
Comfortable.
Color: White, Size: Queen (Pack of 2)
Comfortable. Good quality.
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Reviewed in the United States on May 17, 2026
A
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ANNEE
Grantham, US
★★★★★ 3
Average pillow that might be great for some folks, not for me
Color: White, Size: Queen (Pack of 2)
I should have know this would be like every other pillow I've ever ordered. It's too puffy for me. No give. It claims to offer better support for side sleepers but instead it's giving me kinks in my neck. Not for me. Not adjustable. Not versatile. Standard materials. White. Can't speak to washability and durability as I have had it long and haven't washed it. fair price for two standard pillows. I really wish all these bedding companies would stop rolling and vacuum sealing pillows and such.
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Reviewed in the United States on June 9, 2026
D
Verified Purchase
DrDavid S DeMasi
Waukegan, US
★★★★★ 5
Just perfect. Well made, No Issues Just one perfect sleep zzzzzzzzzzz😴
Color: White, Size: Queen (Pack of 2)
I had down pillows, and foam pillows, and other synthetic pillows etc and some were ok and others were not. I cannot get a great nights sleep if I am constantly having to adjust my pillow during the night. I ordered these pillows as I sleep on my side mostly but sometimes on my back. When they arrived I followed the directions (as they are in a vacuum pack) and only takes a few minutes for them to acclimate. Then put pillow cases on them and off to bed. I had the BEST sleep I have had in YEARS !!!!! The pillows are great. They keep your head comfortable and cool (No Sweating) and super comfortable. The only issue is after a perfect nights sleep, I find I really do not want to get out of bed in the morning..One great thing, is I am retired so I really do not have to get up out of bed until I want to 😴😳. The pillows are well made and feel like expensive down filled pillows but softer. I am VERY satisfied with the pillows. I just wish I would have found these pillows years ago. But now I have them and the perfect sleep that they provide. Dr Dave
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Reviewed in the United States on June 4, 2026
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Maritza
Whiting, US
★★★★★ 5
Great sleep
Color: White, Size: Queen (Pack of 2), Color: White, Size: Queen (Pack of 2)
Finally found a pillow that is comfortable. Tested about 5 until I found the right one. This is perfect for back and side sleepers. Firm, but soft. Just enough filling and great quality. Will hold up for many years.
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Reviewed in the United States on May 24, 2026

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