SKU: 37938483930

Holley Standard Main Jet #41 (HO122-41)

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Description

Holley Standard Main Jet #41 (HO122-41)HO122 41 HOLLEY MAIN JETS, 2 PACK (41) 1 4 32" Thread, . 041" Hole Size (Pair) Part Number: HO122 41 These metering orifices control fuel flow into the metering system. They are rated in flow capacity "cubic centimetres per minute" and are changeable for tuning purposes. The shape of the entry, exit, and size determines flow. All Holley Main Jets are flow tested and then stamped with the correct number.

HO122-41 - HOLLEY MAIN JETS, 2 PACK (41)

1/4-32" Thread, .041" Hole Size (Pair)

Part Number: HO122-41

These metering orifices control fuel flow into the metering system. They are rated in flow capacity "cubic centimetres per minute" and are changeable for tuning purposes. The shape of the entry, exit, and size determines flow. All Holley Main Jets are flow tested and then stamped with the correct number.

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SKU: 37938483930

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Guanxiong Xue
Carnegie, US
★★★★★ 5
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Format: Paperback
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Reviewed in the United States on October 21, 2014
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Ryan
Belleville, US
★★★★★ 1
One Star
Format: Paperback
Exactly the same as the free PDF I downloaded online for my student, only this costs $26 plus tax.
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Reviewed in the United States on April 3, 2017
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funmi adebayo
Boise, US
★★★★★ 5
Easy read
Format: Hardcover, Format: Hardcover
I’m an NP student, and I find this book easier to read than the one recommended in school. The school-recommended book is almost $300, which is much cheaper. This book is a better read that breaks down complex concepts in a way that’s easy to understand. It should be used alongside NP books to help you understand your scope of practice. The book is written by an MD, which is a huge asset in terms of knowledge. The digital version includes the code, but I haven’t tried it yet. .
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Reviewed in the United States on February 17, 2026
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lkmcnair
Port Orchard, US
★★★★★ 5
Dr Ferri's Clinical Advisor '26 is, as always, a fabulous resource for any medical or NP practice!
Format: Hardcover
Excellent resource, as always from Dr Ferri. Well worth its generous weight to use a resource other than UptoDate once in a while. Besides, for us medical providers who have been in the calling many years, Ferri's Clinical Advisor 2026 is better at maintaining ones arm strength than lifting an iphone, plus safer and more accurate than the use of AI;)
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Reviewed in the United States on February 13, 2026
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Inez G
Cuba, US
★★★★★ 5
You wont regret!
Format: Hardcover
Love! Love! LOVE! Everything in one book! Plus you get the e-version included as well! I am in NP school and the differential diagnosis book my school required is a joke! I took a chance on this book and am so glad I did! It's a big book! So plan on leaving it on your desk or tabletop, but at least youll have access to the ebook across your devices
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Reviewed in the United States on September 11, 2025

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