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Description
Holley EFI Dual Sync BBC Tall Deck Distributor - 565-204Overview: Introducing the next generation of Holley EFI Dual Sync Distributors, the new design features an improved shutter wheel, high quality dual Hall Effect sensors, and an MSD cap and rotor! While these distributors are designed to be used primarily in sequentially injected installations, you can easily use them as a crank trigger for TBI system also. The precision machined shutter wheel design ensures accurate timing, even at very high engine
Overview:
Introducing the next generation of Holley EFI Dual Sync Distributors, the new design features an improved shutter wheel, high-quality dual Hall Effect sensors, and an MSD cap and rotor!
While these distributors are designed to be used primarily in sequentially injected installations, you can easily use them as a crank trigger for TBI system also. The precision machined shutter wheel design ensures accurate timing, even at very high engine speeds. The Gen 2 Dual Sync also included a QPQ coated shutter wheel for superior corrosion resistance, and the wheel has been pinned and welded to the shaft for increased reliability. These distributors can also be used with other EFI systems that support Hall Effect crank and cam sensor inputs. Do you need to a bronze gear for your billet cam? No problem, these distributors maintain MSD shaft diameters, making it easy to source a bronze gear!
Features:
- Plug and Play with Holley EFI
- Includes both crank and cam sensors to support sequential EFI operation
- Hall Effect sensor design provides precise timing control and noise immunity
- CNC machined billet aluminum housing
- Integrated LEDs allow for easy setup
- Available for popular applications
- Comes with hardened steel distributor gear
- Precision machined shutter wheel designed for improved accuracy at extreme engine RPM
- Shutter wheel is pinned and welded to distributor shaft for superior reliability
- Blank cap available for Coil-On-Plug applications
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1991 - 1995 | Chevrolet | C2500 | 454/7.4 V8 | |
| 1992 - 1995 | Chevrolet | C2500 Suburban | 454/7.4 V8 | |
| 1975 - 1986 | Chevrolet | C30 | 454/7.4 V8 | |
| 1988 - 1995 | Chevrolet | C3500 | 454/7.4 V8 | |
| 1970 - 1976 | Chevrolet | Caprice | 454/7.4 V8 | |
| 1975 | Chevrolet | El Camino | Base | 454/7.4 V8 |
| 1976 | Chevrolet | G20 | Beauville | 454/7.4 V8 |
| 1976 | Chevrolet | G20 | Chevy Van | 454/7.4 V8 |
| 1975 - 1996 | Chevrolet | G30 | Beauville | 454/7.4 V8 |
| 1970 - 1974 | Chevrolet | El Camino | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | El Camino | 402/6.6 V8 | |
| 1973 - 1974 | Chevrolet | G10 Van | Base | 454/7.4 V8 |
| 1973 - 1974 | Chevrolet | G20 Van | 454/7.4 V8 | |
| 1973 - 1974 | Chevrolet | G30 Van | Base | 454/7.4 V8 |
| 1963 - 1969 | Chevrolet | Impala | 427/7 V8 | |
| 1965 - 1969 | Chevrolet | Impala | 396/6.5 V8 | |
| 1966 - 1967 | Chevrolet | Impala | Base | 396/6.5 V8 |
| 1966 - 1967 | Chevrolet | Impala | Base | 427/7 V8 |
| 1966 - 1967 | Chevrolet | Impala | SS | 396/6.5 V8 |
| 1966 - 1967 | Chevrolet | Impala | SS | 427/7 V8 |
| 1970 - 1976 | Chevrolet | Impala | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | Impala | 402/6.6 V8 | |
| 1968 - 1969 | Chevrolet | K10 Pickup | 396/6.5 V8 | |
| 1975 - 1986 | Chevrolet | C20 | 454/7.4 V8 | |
| 1973 - 1986 | Chevrolet | C20 Suburban | 454/7.4 V8 | |
| 1990 - 1993 | Chevrolet | C1500 | Cheyenne | 454/7.4 V8 |
| 1990 - 1993 | Chevrolet | C1500 | Silverado | 454/7.4 V8 |
| 1990 - 1993 | Chevrolet | C1500 | 454 SS | 454/7.4 V8 |
| 1990 - 1993 | Chevrolet | C1500 | WT | 454/7.4 V8 |
| 1970 - 1975 | Chevrolet | Bel Air | 454/7.4 V8 | |
| 1976 - 1978 | Chevrolet | K5 Blazer | 454/7.4 V8 | |
| 1975 - 1980 | Chevrolet | C10 | 454/7.4 V8 | |
| 1973 - 1974 | Chevrolet | K10 Pickup | 454/7.4 V8 | |
| 1968 - 1969 | Chevrolet | K10 Suburban | 396/6.5 V8 | |
| 1970 - 1972 | Chevrolet | K10 Suburban | 402/6.6 V8 | |
| 1973 - 1974 | Chevrolet | K10 Suburban | 454/7.4 V8 | |
| 1968 - 1969 | Chevrolet | K20 Pickup | 396/6.5 V8 | |
| 1970 - 1972 | Chevrolet | K20 Pickup | 402/6.6 V8 | |
| 1973 - 1974 | Chevrolet | K20 Pickup | 454/7.4 V8 | |
| 1968 - 1969 | Chevrolet | K20 Suburban | 396/6.5 V8 | |
| 1970 - 1972 | Chevrolet | K20 Suburban | 402/6.6 V8 | |
| 1973 - 1985 | Chevrolet | K20 Suburban | 454/7.4 V8 | |
| 1968 - 1969 | Chevrolet | K30 Pickup | 396/6.5 V8 | |
| 1970 - 1972 | Chevrolet | K30 Pickup | 402/6.6 V8 | |
| 1973 - 1974 | Chevrolet | K30 Pickup | 454/7.4 V8 | |
| 1969 | Chevrolet | Kingswood | 396/6.5 V8 | |
| 1969 | Chevrolet | Kingswood | 427/7 V8 | |
| 1970 - 1972 | Chevrolet | Kingswood | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | Kingswood | 402/6.6 V8 | |
| 1973 - 1975 | Chevrolet | Laguna | 454/7.4 V8 | |
| 1965 - 1967 | Chevrolet | Malibu | 396/6.5 V8 | |
| 1973 - 1980 | Chevrolet | C10 Suburban | 454/7.4 V8 | |
| 1990 | Chevrolet | C1500 | Scottsdale | 454/7.4 V8 |
| 1965 - 1967 | Chevrolet | Chevelle | Base | 396/6.5 V8 |
| 1965 - 1968 | Chevrolet | Chevelle | SS | 396/6.5 V8 |
| 1967 | Chevrolet | Chevelle | Deluxe | 396/6.5 V8 |
| 1967 - 1968 | Chevrolet | Chevelle | Concours | 396/6.5 V8 |
| 1968 | Chevrolet | Chevelle | 300 | 396/6.5 V8 |
| 1968 | Chevrolet | Chevelle | 300 Deluxe | 396/6.5 V8 |
| 1968 | Chevrolet | Chevelle | Malibu | 396/6.5 V8 |
| 1968 | Chevrolet | Chevelle | Nomad | 396/6.5 V8 |
| 1969 - 1970 | Chevrolet | Chevelle | 396/6.5 V8 | |
| 1970 - 1973 | Chevrolet | Chevelle | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | Chevelle | 402/6.6 V8 | |
| 1968 | Chevrolet | Chevy II | 396/6.5 V8 | |
| 1965 | Chevrolet | Corvette | 396/6.5 V8 | |
| 1966 - 1969 | Chevrolet | Corvette | 427/7 V8 | |
| 1970 - 1974 | Chevrolet | Corvette | 454/7.4 V8 | |
| 1966 - 1970 | Chevrolet | El Camino | 396/6.5 V8 | |
| 1970 - 1972 | Chevrolet | Camaro | SS | 402/6.6 V8 |
| 1966 - 1969 | Chevrolet | Caprice | 396/6.5 V8 | |
| 1966 - 1969 | Chevrolet | Caprice | 427/7 V8 | |
| 1970 - 1972 | Chevrolet | Caprice | 402/6.6 V8 | |
| 1989 - 1991 | Chevrolet | V3500 | 454/7.4 V8 | |
| 1993 | GMC | K2500 Suburban | SLE | 454/7.4 V8 |
| 1963 - 1 |
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4.4 ★★★★★
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Product Reviews
★★★★★ 5
Patient heal yourself
Format: Kindle
I felt this book is a strong path towards healing your body via energy centers in your body. I read this book twice because there was so much good information to get out of it. I am currently applying it to some of my own health issues. It is very organized. Explaining the theory behind the Energy Code. Then it explains the process of the body and how they align with your energy centers your Chakras. Then it goes through techniques and suggestions finally it gives you a catalog of ailments and how to apply the Energy Code.
I highly recommend this book. The authors have done truly loving and endearing work with this book. It will be with me always.
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Reviewed in the United States on February 16, 2026
★★★★★ 4
Helpful guide
Format: Kindle
These are valuable healing tips and insights to keep life energy flowing for optimum health.
The guidance starts with the energetic cause of the condition, then the energetic solution like generating the white brilliant light, affirmations, and healing tips: from self- love, releasing guilt, transforming feelings of responsibility, and more. Blessed are you, the healers. Thanks for sharing.
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Reviewed in the United States on February 17, 2026
★★★★★ 5
A Thoughtful Look at Healing Beyond the Physical
Format: Kindle
The Energy Code invites you to slow down and view health from a completely different angle, rather than focusing only on symptoms or surface-level fixes. The book presents a deeper question: What if the body is responding to something happening beneath the surface?
The book doesn't dismiss conventional medicine or make bold claims; it simply opens the door to another layer of understanding. It explores how emotional patterns, energy imbalances, and unresolved stress might show up physically, and it does so in a way that feels thoughtful rather than extreme.
The symptom guide encourages reflection, not fear, and helps you see possible connections between what your body is experiencing and what might be going on internally. Even if you don't agree with every idea, it's hard not to find moments that make you pause and think.
If you're open to holistic perspectives and want to explore healing from the inside out, The Energy Code offers an insightful and reflective place to start.
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Reviewed in the United States on January 3, 2026
★★★★★ 5
Bridge Between Energy Work and Nervous System Healing
Format: Kindle
I’ve been trained in Reiki and am certified in breathwork, which drew me to this book. The connection the author makes between suppressed emotions, nervous system dysregulation, and physical symptoms is impressive. In my own work with energy and breath, I’ve seen firsthand how unresolved experiences become stored in the body. This book explains why that happens. The explanation of energetic blockages and the chakra system are accurate and explained well. There is an emphasis on safety and nervous system support, which is essential in breathwork and trauma-informed healing. The symptom guide is also thorough and helps you decide where and what you need to work on. Highly recommended.
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Reviewed in the United States on February 21, 2026
★★★★★ 4
What Your Body Is Telling You
Format: Kindle
This book makes a strong impression right from the start. The tone is calm and steady, and it never feels like it’s trying to scare you or sell quick answers. Instead, the author takes a simple, grounded approach to understanding physical sensations and why they show up in daily life. The book connects stress, emotions, and the body. These ideas can sound complicated, but here they’re explained in plain language that makes sense right away. You don’t need any special background to follow along, just a willingness to pay attention. The book doesn’t preach or push a strict method. It encourages awareness rather than control, which feels refreshing. It gives you space to reflect and notice patterns without judgment. Overall, this is a thoughtful and approachable read that feels supportive without being soft.
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Reviewed in the United States on January 18, 2026