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Description
Adjustable Billet By-Pass Regulator 3/8 NPT Kit 12-879KITAdjustable billet by pass return style fuel pressure regulator 3 8 NPT Kit with Fuel Pressure Gauge and Adapter Fittings Boost Reference 1: 1 Holley Billet Fuel Pressure Regulators are part of a complete line of fuel system products from Holley. They are precision machined from 6061 T6 billet aluminum for strength and durability. These regulators are adjustable from 4 65 psi and will handle both carbureted and EFI applications. A second pressure
Adjustable billet by-pass return style fuel pressure regulator 3/8 NPT Kit with Fuel Pressure Gauge and Adapter Fittings Boost Reference - 1:1
Holley Billet Fuel Pressure Regulators are part of a complete line of fuel system products from Holley. They are precision machined from 6061-T6 billet aluminum for strength and durability. These regulators are adjustable from 4-65 psi and will handle both carbureted and EFI applications. A second pressure spring is included allowing you to increase the fuel pressure range up to 65 psi for EFI systems. They have 3/8 NPT port sizes to adapt to your new or existing fuel lines. So, if you are currently running a carbureted system but plan to upgrade to EFI in the future, these regulators will have you covered either way.
Features:
- Adjustable from 4-65 psi for precise fuel pressure adjustments
- Constructed of billet aluminum with a black anodized base and a clear anodized top for good looks
- Used in systems with a return line back to the tank
- (1) 3/8" NPT Inlet; (1) 3/8" NPT Outlet; and (1) 3/8" NPT return
- Includes fitting for manifold reference
- Includes an 1/8 NPT gauge port
- Boost Reference - 1:1
- The 4-15 psi carbureted spring comes installed in the regulator
Specs:
| Adjustable | Yes |
|---|---|
| Brand | Holley |
| Color | Black |
| Emission Code | 5 |
| Fuel System | EFI/Carb |
| Fuel Type | Gasoline |
| Gauge Included | Yes |
| Gauge Port Included | Yes |
| Grade Type | Performance |
| Inlet Gender | Female |
| Inlet Port Diameter | 3/8Inch |
| Inlet Port Quantity | 1 |
| Inlet Size | 3/8" NPT |
| Inlet Type | NPT |
| Material | Aluminum |
| Maximum Pressure | 65Pounds per Square Inch |
| Minimum Pressure | 4Pounds per Square Inch |
| Mounting Bracket Included | Yes |
| Mounting Type | Inline |
| Outlet Gender | Female |
| Outlet Port Diameter | 3/8Inch |
| Outlet Port Quantity | 2 |
| Outlet Size | 3/8" NPT |
| Outlet Type | NPT |
| Port Quantity | 2 |
| Product Type | Fuel Pressure Regulator |
| Rebuildable | Yes |
| Return Size | 3/8 inch NPT |
| Style | Bypass |
| Vacuum Port Quantity | 1 |
| Warning | California Proposition 65 |
| Warranty | Limited 90 Day |
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Exchange/Return Notes
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4.5 ★★★★★
Based on 1890 reviews
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Product Reviews
★★★★★ 5
Written from a Biblical position.
Great read!!!❤️
Excellent for couples who want to create a strong bond and grow.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
★★★★★ 5
Best Relationship Book!!
Format: Hardcover
First, I wish I had this book 25 years ago. Sure, I had the Bible and knew all the Christian 'rules' but Rev. Todd lays everything out so well, even the details that have gotten lost or glazed over through the decades of Christian teachings. The way he presents each phase is superb! I love, love, love his authentic writings on God's love for each of us. You can tell Rev. Todd is a man of deep faith but most of all, he is just a person that, like all of us, mess up.
His writings are real, authentic, relatable, inspiring and exactly what this world needs.
I do hope Rev. Todd continues to write on other topics.
I have been truly blessed by this book!
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Reviewed in the United States on April 4, 2026
★★★★★ 5
Excellent read
Format: Paperback
Great book
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Reviewed in the United States on April 29, 2026
★★★★★ 5
Read It All
Format: Hardcover
First Impression and Why I Bought It: This book was very informative and may be a fresh read for some people. I bought it during a time of my life when I wasn't sure what I wanted out of my relationship because I was struggling with an unrealistic and teenage way of dating as a young adult.
About/From the Book: I learned the value of singleness and what it would mean to move forward in a healthy, committed relationship. It can be a good basis for any young person looking for guidance in how to maximize your singleness; learning yourself--what you like and don't like, what you want to do/don't--how to set realistic expectations for yourself in pursuit of a partner, how dating should go based on biblical standards but it teaches how to do that in a practical and modern way. Throughout the book the value in your relationship with God and how the value of that relationship flows into your romantic, friend, and business/work-related relationships is tied together. So if you're single or dating and you want to gain a different perspective of how to navigate your period of singleness using a modern biblical practice but also just relevant to Gen X, check this out.
Would I recommend? Yes.
Who would I recommend it to? 18-24 y/os.
My Appliances: Ironically, after reading this book I did take up new skill, figured out what I wanted in my relationship, and recommend it to a friend who bought a copy. And regarding the biblical based modern dating technique, it can be done, it just takes maturity and restraint. Although being an adult where I am now in life, I think that if you're with someone that you know, that you know you're going to marry then hiccups may occur when trying to apply that, especially when you're attracted to that person, haha.
Conclusion: Please read the book in an objective format, yes some things can be taken literally, but life isn't gonna happen the way he describes it. These are just rules of thumb to reference as you do life and apply at your own discretion.
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Reviewed in the United States on November 9, 2023
★★★★★ 5
✨✨The best recipe manual 📖 to cook up a life full of abundance and fulfilling relationships!! ✨✨
Format: Hardcover
Light bulbs💡 when off in my head, helping me put the puzzle together!
I am only in the first chapter of the book, but Relationship Goals has already brought clarity and is connecting the dots to things I have been struggling with in my relationships. I instinctively have the intentions to be the best person I can for myself and others. I was self sabotaging myself due to lacking the proper guidance that I’ve been searching for. Hitting a low level in my life, a lot of my relationships have been destroyed due to lack of knowledge. We all know what we want out of a relationship but seem to fall short and miscommunication then shatters our true intentions. The book is a reminder of God’s natural law and the purpose he planned over my life. It’s a manual on how to use his word to navigate and win in relationships. If your like me and you love your family and friends, but deep down inside you want more then what they can help you with. Turn back to God, grab this book, read and listen with faith!!! You will know how to move forward and get back to living an abundant life.
This book is for everyone in any relationship situation that has a plan but need the step by outline on how to get to the goal. Relationship Goals is a easy to read recipe book! It has a hint of relatability to millennials, dash of scripture references, and cup full of Pastor Michael Todd’s advice and humor.
Thank you for the perfect recipe manual to help get me back on track to trusting God and walking in my purpose!
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Reviewed in the United States on May 5, 2020