SKU: 88510833670

Holley 850 CFM Four Barrel Aluminium Street HP Carburettor (HO0-82851SA)

Sale price$837.90 Regular price$931.00
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Description

Holley 850 CFM Four Barrel Aluminium Street HP Carburettor (HO0-82851SA)HO0 82851SA HOLLEY 850 CFM DP ALLOY 4150 HP Mechanical Secondaries Part Number: HO0 82851SA Holley is proud to introduce the all new Aluminium Street HP. They utilize the best features from Holley's Race Bred 4150 HP carbs, but are tamed for street and light competition use. The Street HP features an aluminium contoured main body design taken from the race winning 4150 HP and has a tumble polished shiny finish and screw in air bleeds for precision

HO0-82851SA - HOLLEY 850 CFM DP ALLOY

4150 HP Mechanical Secondaries

Part Number: HO0-82851SA

Holley is proud to introduce the all new Aluminium Street HP. They utilize the best features from Holley's Race Bred 4150 HP carbs, but are tamed for street and light competition use. The Street HP features an aluminium contoured main body design taken from the race winning 4150 HP and has a tumble polished shiny finish and screw in air bleeds for precision tuning capabilities. The metering system includes a timed spark port for a vacuum advance distributor and is calibrated for a hot street/strip engine setup for outstanding throttle response, drivability and maximum performance. A street HP base plate is used so there are plenty of vacuum ports for power brakes, PCV, etc.
The Aluminium Street HP takes all the great features from the race bred HP and the Double Pumper and combines them into the perfect street/strip carburetor.
Features:
Aluminium construction for weight savings and long lasting good looks
Optimized street/strip calibration for outstanding throttle response and drivability
Contoured venturi inlet offers balanced airflow for increased horsepower
Screw in air bleeds for precision tuning capabilities
Four corner idle for precise idle 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
Available in 650, 750, 850, and 950 CFM versions
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!
Compatible with GM, Chrysler, and Ford A/T kickdown linkage. Additional parts may be required.

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Exchange/Return Notes
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SKU: 88510833670

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Review Dude
Dallas, US
★★★★★ 5
#1 for #2's
Flavor Name: Unflavored, Size: 1.46 Pound (Pack of 1)
I like the lack of sweeteners and flavor. I just want the stuff that helps me poop. There is some citric acid in it (no idea why) which gives it a mildly acidic taste. Other than that, it does the trick.
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Reviewed in the United States on March 23, 2026
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Strathmont
Waukegan, US
★★★★★ 5
Good Stuff
Flavor Name: Unflavored, Size: 1.46 Pound (Pack of 1)
If you need more fiber in your diet, you need this. The price is right, it works very well and keeps me regular. I use this instead of the gummies or capsules. That's because you MUST put in in fluid, and hydration is SO important when using a psyllium product as it causes water to be absorbed very quickly once it is ingested, and you don't want to dehydrate! Mixes very well in water and has little to no taste whatsoever. Stay regular, stay hydrated and stay well.
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Reviewed in the United States on April 14, 2026
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Robert
Omaha, US
★★★★★ 4
Works well, but is now too expensive...
Flavor Name: Unflavored, Size: 1.46 Pound (Pack of 1)
The "No added sweeteners" has been my go-to version of Metamucil, but I'm giving it 4 stars and moving on to another brand as the price is over $35 which is too much imo...
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Reviewed in the United States on October 15, 2025
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S. E. Seater
Boise, US
★★★★★ 5
I like the mildly tart taste of this unflavored, unsweetened drink made up with water.
Flavor Name: Unflavored, Size: 1.46 Pound (Pack of 1)
I like the mildly tart taste of this unflavored, unsweetened drink made up with water. The texture doesn't bother me, with stirring right from the beginning of adding the water, there is no clumping. After 10 days there is no effect on my bowels which were regular previously anyway. My doctor wanted me to use this although I already have a high fiber diet.
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Reviewed in the United States on April 25, 2026
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AB
Belleville, US
★★★★★ 1
Definitely Not Unflavored. This is Tart / Sour, Which Limits the Options to Certain Juices
Flavor Name: Unflavored, Size: 1.46 Pound (Pack of 1)
I was expecting an unflavored fiber powder. However, expect a sour/tart taste. This means you can't add it to tea or coffee. I don't think it is appropriate to say that it is "unflavored" as I've had psyllium husk from other vendors that are truly "unflavored" (i.e. no citric acid). Dextrin (another fiber source) is also unflavored. But this Metamucil is tart (like sucking a lime) and can only be added to tart juices like orange juice or lemonade.
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Reviewed in the United States on May 19, 2026

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