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Description
4150 750Cfm Xp Alum Dp Sc W Black Billet-0-80576SABy popular demand, Holley is expanding the draw thru supercharger carburetor line to now include the XP series. Like the existing HP line, these are available in 600, 750, and 950 CFM flow rates and standard polished with black accents. The feature laden XP includes a contoured venturi inlet for balanced air flow, screw in air bleeds for precision tuning capabilities, high flow billet metering blocks, billet base plate, and Dominator style fuel bowls
By popular demand, Holley is expanding the draw-thru supercharger carburetor line to now include the XP series. Like the existing HP line, these are available in 600, 750, and 950 CFM flow rates and standard polished with black accents. The feature-laden XP includes a contoured venturi inlet for balanced air flow, screw in air bleeds for precision tuning capabilities, high flow billet metering blocks, billet base plate, and Dominator style fuel bowls which allow plumbing from either side. Supercharger XP carburetors also have a unique capability that allows their power valves to reference the intake manifold vacuum below the supercharger. This allows the power valve to operate as it should, based off intake manifold vacuum. A power valve provides further enrichment to the main metering system under load (low vacuum) conditions. Holley XP carburetors are the standard for square bore race carburetors. Race-Ready out of the box!
Features:
- Tumble polished shiny finish for good looks
- Designed for use on the WEIAND® 671 supercharger (big block Chevrolet/Chrysler 392) or WEIAND® 871 supercharger (small block Chevrolet/Chrysler 426)
- Contoured venturri inlet offers balanced airflow for increased horsepower
- Screw in air bleeds for precision tuning capabilities
- Dual 30cc accelerator pumps for additional fuel under initial acceleration
- Dual feed fuel inlets for constant high volume fuel delivery
- 4 corner idle allows you to precisely control your idle system
- Mechanical Secondaries for perfect off the line launches
- Boost referenced power valve for proper enrichment under acceleration
- Throttle lever cut off for clearance on a sideways application
- 100% wet-flow tested by Holley technicians to assure it arrives ready to run!
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
4.2 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 1
Not what I ordered!
Color: Silver, Size: XX-Large, Color: Silver, Size: XX-Large
I ordered this jacket for my boyfriend for New Years. Not only did it not fit according to the size chart (too small). It was nothing like what was pictured on the listing. The sequins were very light and cheaply sewn on. And the lining and button were WHITE! Not black as pictured. I have never had a problem with anything I ordered from Amazon until now. I returned it and was refunded. But, now have to find a different jacket. NOT HAPPY.
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Reviewed in the United States on December 9, 2019
★★★★★ 5
Good buy
Great fit and I always get lots of compliments on the blazer when I wear it
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Reviewed in the United States on October 28, 2025
★★★★★ 5
Man all I can say is WOW!
Man the quality and price for this is like no other. I wore this for a valentine engagement and people were coming around me and asking me can they have this like they were paparazzi. Folks out of the blue were just taking pictures of me. I can't believe how good and great this jacket is. Never had that many compliments of something I wore in my life and I always dress well in suits constantly. Got to buy some more of these things.
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Reviewed in the United States on February 17, 2020
★★★★★ 3
Simple suit
If you’re wanting something fancy this isn’t for you. I got it to wear to a derby party an it’s perfect.
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Reviewed in the United States on April 10, 2026
★★★★★ 1
Nope nope nope
Not impressed at All!! The color is off and the suit is cheap!! Pants run big as well!!
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Reviewed in the United States on March 21, 2026