Pay in installments of $187.50 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 15 - Jul 20
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
950CFM Ultra XP Carburetor - 0-80845HBXOverview: Xtreme Performance Holley Ultra XP carburetors! Ultra XP carbs are up to 38% lighter than our traditional race carbs, have fuel capacity that is 20% greater and 30 other new features! They're available in our all new Hard Core Gray hard coat anodized finish with Black billet for improved corrosion protection. They're also available in natural tumble polished aluminum with your choice of Black or Red metering blocks and base plate. The
Overview:
Xtreme Performance - Holley Ultra XP™ carburetors! Ultra XP carbs are up to 38% lighter than our traditional race carbs, have fuel capacity that is 20% greater and 30 other new features! They're available in our all-new Hard Core Gray™ hard coat anodized finish with Black™ billet for improved corrosion protection. They're also available in natural tumble-polished aluminum with your choice of Black™ or Red™ metering blocks and base plate. The Aluminum Ultra XP comes in 600, 650, 750, 850, and True 950-CFM. Holley Ultra XP carburetors offer new features such as an integrated idle bypass valve that allows for idle adjustments while maintaining the correct throttle plate to transfer slot relationship, high capacity fuel bowls which feature 20% more fuel capacity to eliminate starvation, integrated fuel shelf to minimize fuel aeration and internal baffling to control fuel slosh. Other features include all aluminum construction, fully tunable billet metering blocks, billet base plate, adjustable secondary linkage and knurled (hand adjustable) curb idle screws. Holley Ultra XP carburetors are the ultimate in square bore race carburetors!
Features:
- Aluminum Construction (saves 4.5 lbs - 38% weight savings)
- Hard Core Gray with black anodized billet aluminum metering block and booster inserts
- Designed for use on Drag race, circle track, or any high horsepower engines
- E85 specific calibration
- Contoured venturri inlet offers balanced airflow for increased horsepower
- Air bleeds moved outward to allow a smoother transition of airflow from the top of the carburetor into the venturii
- Metering blocks feature improved durability, true gasket sealing and fully adjustable (emulsion bleeds, power valve channel restrictors & idle feed restrictors)
- Integrated idle bypass valve eliminates the need for holes in throttle plates and allows for proper adjustment of idle while maintaining correct throttle plate to transfer slot relationship. Helps maintain good idle control when using radical camshafts.
- Fuel bowls provide 20% more fuel capacity while controlling slosh with internal baffling
- Clear sight windows on both sides of bowls for easy and safe fuel level adjustments
- Built in drain plug in front center of bowl provides easy access to empty contents of bowl
- 8AN (o-ringed) inlet threads offer a large variety of plumbing options and can be plumbed from either side
- .130" stainless needle & seats to control the demand of E-85
- 4 corner idle allows you to precisely control your idle system
- Mechanical Secondaries for perfect off the line launches
- Elongated (dual pattern) mounting holes allow fitment on intakes with square flange (Holley 4150™ style) or large flange (Holley Dominator® style)
- Knurled (hand adjustable) primary and secondary curb idle screws allow for easy idle adjustment without the use of tools
- Primary throttle shaft capped to prevent entry of debris & contaminates
- Throttle shaft is slabbed and undercut for improved airflow
- Factory machined accessory mounting hole for easy addition of adjustable primary throttle stop. New secondary pump cam lever designed to provide positive throttle stop on secondary side
- Stainless steel adjustable secondary link. Provides choice of 1:1 or progressivesecondary throttle actuation for ultimate control of secondary opening rate
- Baseplate designed with a boss that can be consumer machined for vacuum source
- Stainless steel throttle plates
- Includes notched float and jet extensions
- 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 |
|---|---|
| Billet Color | Hard Core Gray with Black |
| Booster | Down Leg |
| Brand | Holley |
| Carburetor Use | Professional Race |
| CFM | 950 |
| Choke | None |
| Condition | New |
| Emission Code | 3 |
| Finish | Hard Core Gray |
| Fuel | E-85 |
| Fuel Inlet | Dual |
| High Speed Air Bleed | 24 |
| Idle Air Bleed Size | 67 |
| Marine Use | No |
| Material | Aluminum |
| Model | 4150 |
| Primary Main Jet | 96 |
| Primary Power Valve | 5.5 |
| Primary Pump Nozzle Size | 42 |
| Product Type | Ultra XP Carburetor |
| Secondaries | Mechanical |
| Secondary Main Jet | 106 |
| Secondary Pump Nozzle Size | 50 |
| Supercharged Application | No |
| Throttle Bore | 1.750 inch |
| Venturii Size | 1.600 inch |
| 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:
- 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 26 reviews
Sort
Product Reviews
★★★★★ 5
Miele
Configuration: Vacuum
Best vacuum ever! Great performance for all floors. Durable and powerful. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
★★★★★ 5
Keeps ALL it's promises
Configuration: Vacuum
12/27/18 I have been using this vac over a year to clean our home's hardwood and vinyl floors and low pile area rugs. Disclaimer: we are not related to the company in any way, shape or form - have to say that because this review may sound like a commercial! This vacuum is small, quiet, very powerful and fulfills every promise the company makes about it. This unit comes with 3 small tools contained in the unit, 1 hard floor tool (vacuum powered) and 1 low pile carpet tool (vacuum powered). The 2 floor tools clip onto the sides of the canister. There are 6 power settings from a low for drapes to a high for hardwood floors, all marked with an icon. The power cord IS EXTRA LONG - yes, fewer plug changes - and the re-tractor works beautifully (I do let the cord slid through my fingers and catch the plug end to keep it from slamming into the back out of habit). The wand section is collapsible, which I just thought was nice for storage until I began using that feature while vacuuming in tight spaces, where you can change the wand length on the fly. The floor tools' articulated connection to the hose looks quirky until you begin using it; it makes the tool head extremely nimble in getting into tight spaces. The hard floor head has a skip tooth brush pattern around the edge which pulls in dust instead of pushing dust in front of it. The suction works all the way out to the ends - it will pull dust into the head from ALL the way around. The dust bag and separate HEPA filter have markers to let you know when to change them. I haven't changed either yet (note: we do not have pets, the house is vacuumed weekly). It tracks easily and the side bumper strips are placed where they actually work!
Problems? well it is expensive, but I don't see replacing it any time soon.
Seriously, I am still amazed at how well built and well thought out this unit is.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 27, 2018
★★★★★ 1
I absolutely hate this vacuum.
Configuration: Vacuum
I bought it due to the positive reviews and was tired of my Dyson ball vacuum. Since day one I have had nothing but problems with a vomit like smell that comes out of this vacuum every time we use it. It got to the point that we have replaced the filter with expensive carbon filters, washed out the hoses and attachments with bleach, and nothing has worked to get this thing to smell better. To make matters worse, the suction power of this thing is limited at best compared to other vacuums we have owned. I can go over the carpet with my old Dyson and pick up a significant amount of dirt that the miele cannot even come close to getting. I wish I had returned it when I still had a chance.
We have now bought a iRobot Roomba 980 and honestly it is 100x better than the Miele piece of junk that just sits in the closet now. It has strong suction power, is easier to clean, and keeps the house clean.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2019
★★★★★ 5
Nearly perfect!!!
Configuration: Vacuum
My Dyson ball cracked & I needed to replace. I despised my Dyson; it pushed more around than it picked up. I've been researching vacuums & landed on Miele but it took me a while to land on what kind. I have mainly hardwood floors & wanted something good to dust, do stairs & be a good total hope vaccuum.
I have allergies so C1 series out. C2 is too compact so I landed on C3 (great YouTube videos on all this).
This is a lower C3 end with the bells & whistles. I can click controls with my foot & I forgot how nice retractable cord is. What drive me to this model is the turbo brush head... this head had great reviews.
So I just got it & used & WOW. My floors feel so clean. The crevice & dusting attachments are great. I whipped through all my baseboard & trim in no time. It's light weight & doing stairs was easy compared to clumsy Dyson. The Jose is flexible & easy to work with.
The only con I can see, & I saw reviews on it & agree, there should be a handle to hold the vacuum head with v holding the curve of the hose. It feels ergonomically off when doing floors but it feels fine when dusting/stairs. Other con is that the hose doesn't stand up line an upright (which I expected since it's a canister) but that's really it.
The pros so far confirmed I made the right choice. I have a small dog but she doesn't shed. When selecting a model you need to think of what your needs are & what attachments come with each & go from there. Analise model has more features but I wanted an out of the box, w: right attachments ready to go.
It's an investment so I feel like I made the right choice on this one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 28, 2017
★★★★★ 5
Great way to control TV and radio in one room from an easy chair in another room!
I help a 96 year old blinded vet with tech support -- and as his health worsens, needed to make his TV, his radio, and the audio switch that selects what audio should go into his hearing aids via Bluetooth work from his easy chair in his living room. All the equipment is in his bedroom. This IR repeater system installed quickly and easily and works perfectly. Now he can summon ball games, news, or whatever he wants without fear of getting up and falling down. A perfect solution!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
recommand products
Twist drills / Solid carbide / Ø 6.350 mm / Company std. / Type N / bright
34.11
Twist drills / Solid carbide / Ø 4.370 mm / Company std. / Type N / bright
19.20
End mills Solid carbide / Ø 4.000 mm h10 / Type N / DIN 6527L / FIRE
26.54
Twist drills / Solid carbide / Ø 2.800 mm / Company std. / Type N / bright
12.49
Ratio drills / Solid carbide / Ø 12.500 mm / 5xD / DIN 6537L / Type GS 200 G / bright
143.71