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Description
950CFM Ultra XP Carburetor - 0-80805HBXOverview: 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
- 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.
- Dual 30cc accelerator pumps provide the perfect amount of fuel from idle to full throttle
- 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
- 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
- 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 |
| Circuit | 2 |
| Condition | New |
| Emission Code | 3 |
| Finish | Hard Core Gray |
| Fuel | Gasoline |
| Fuel Inlet | Dual |
| Marine Use | No |
| Material | Aluminum |
| Model | 4150 |
| Primary Main Jet | 92 |
| Primary Power Valve | 4.5 |
| Primary Pump Nozzle Size | 32 |
| Product Type | Ultra XP Carburetor |
| Secondaries | Mechanical |
| Secondary Main Jet | 92 |
| Secondary Power Valve | 4.5 |
| Secondary Pump Nozzle Size | 32 |
| 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
4.8 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
My Fave Sunscreen
Sun protection factor: 50 Sun Protection Factor (SPF), Size: 6 Ounce (Pack of 2)
I love this sunscreen. I bike ride a lot in the summer and I always bring sunscreen with me because I sweat and need to reapply. If I use a cream, my hands end up wet or greasy and I'm holding the handlbars, etc. So, using a spray is way better for me.
I loooooooove the smell of this stuff. It smells of summer! The spray makes it easy to get my back while at the beach and while it's not insanely waterproof, it's certainly water resistant and lasts a long time.
I like the SPF 50, because less isn't enough for me. They say going higher than 50 isn't any better, so I stick with 50 as my "go to."
Buying the duo, as sold here, makes it a good value. Buying this product at a local drug store would cost twice as much. I easily go through both cans in a single summer.
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Reviewed in the United States on November 1, 2025
★★★★★ 5
IT WORKS
Style: SPF 50
I used this on my trip to Jamaica and it worked great. I was in the sun for hours and it kept me from getting any lines. I did reapply after going in the water and when I was feeling really hot. However, I did get burned on the top of my feet as the sand was all over them so I couldn't put sunscreen on them. Lesson learned put lots of sunscreen on your feet prior to arriving to the beach. It does stay on slightly when you go in water. You will see a faint white cast on your skin, but nothing extremely noticeable. Otherwise it rubs in really well and there is no white cast, (only after you go in water will you notice it slightly). If your main purpose is to protect your skin, then this is your friend. It's reef safe and does have safer active ingredients that I feel more comfortable using on my skin. Very happy. I used about 3/4 of the bottle for 3 days of use, this includes reapply applications. So if you have a family you may need to take more than one bottle for a long trip and it's a bit more pricey, but better ingredients typically do cost more.
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Reviewed in the United States on February 22, 2024
★★★★★ 5
Bought 2nd time
Style: SPF 30
I am loyal to the Hawaiian Tropic brand because they have a wonderful scent. Not like the typical sunscreen smell, but fragrant and subtle. This sunscreen does keep my skin protected and I use it almost everyday living in sunny Las Vegas. Doesn't leave a white film and blends into my skin. It is matte, doesn't feel oily. I prefer the 30 SPF for daily use. This is my second purchase and just want a smaller size for travel. But I'll just squirt some into an empty travel sized bottle because I enjoy it for my everyday lotion.
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Reviewed in the United States on January 11, 2023
★★★★★ 4
One of my favorites because it doesn't sting my eyes
Style: SPF 50
This was my first time purchasing this from Amazon though I've bought this product elsewhere before.
This is a sunscreen I come back to because I can use it on my body and it works relatively well on my face as well. It is hydrating and can give a matte-ish looking finish although on my face I'd say it leaves more of a dewy look because I put moisturizer on prior to applying. I've seen a few reviews mention there is pilling when applying to the face and while I've had that happen it's normally only during the day when I reapply. I think that first thing in the morning I don't really have that issue because of the moisturizer I put on before- I let the moisturizer soak in a bit before going in with the sunscreen.
My favorite thing about this sunscreen is that it doesn't sting my eyes, I've worn it out on 90+ SoCal heat and it has not stung my eyes- there's been numerous sunscreen I like on my face but don't repurchase because even mid-80"s heat causes them to run and both sting and blur my vision. As for my giving this a 4 rather than a 5 it is because it leaves a mild white cast after I apply it norming and reapplying throughout the day. The mild white cast does eventually go away but it does take some time, though that is the one downsides I am glad that I'm at least not forced to sport a ghost-ish face all day. In all honestly, the cast is only mild when compared to others like the New "Sheer" Bluelizard SPF 50 face lotion, among others.
I'm a little jealous of others who say they don't have a white cast at all but different products react differently with different people so I know it might just be a "me thing." Overall this is one of the sheer and non-tinted sunscreens I am happiest with and will repurchase again as needed unless I stumble onto that unicorn 50 broad spectrum SPF, cast free, no eye burning/ irritating, and reasonably priced and sized sunscreen =)
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Reviewed in the United States on April 5, 2022
★★★★★ 5
My new favorite
Style: SPF 30
Non-greasy, doesn’t cause irritation to my sensitive skin or cause breakouts, good sun protection, holds up to sweat, smells terrific, fair price. I just wish there were multiple spf options. I have already bought more.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 31, 2022
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