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Description
Holley EFI Dual Sync SBC/BBC Distributor, BlackHolley EFI Dual Sync SBC BBC Distributor, Black 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
Holley EFI Dual Sync SBC/BBC Distributor, BlackOverview
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!
When utilized with Sniper EFI, Ignition Adapter 558-493 is Required!
Features:
- Plug and Play with Holley EFI and Sniper EFI with adapter harness part number 558-493
- Includes both crank and cam sensors to support sequential EFI operation
- Hall Effect sensor design provides precise timing control and noise immunity
- Black anodized CNC machined billet aluminum housing provides superior strength and great looks
- Integrated LEDs allow for easy setup
- Available for popular applications
- Comes with iron 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
Details:
- Color: Black
- Distributor Type: Hall Effect
- Shaft Diameter: .500"
Links
Instruction Sheet
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- Free Standard Shipping on $100+ Orders to the USA.
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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]
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4.3 ★★★★★
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Product Reviews
★★★★★ 5
Very quiet and comfortable keyboard
Color: Black
I recently purchased this keyboard and mouse set to replace my old one, and I’ve been very pleased with it so far. The keyboard keys are soft, responsive, and surprisingly quiet, which makes typing much more comfortable. The mouse also has a smooth, soft-touch feel that fits nicely in the hand. Overall, the set feels well made and like a great value for the price. I would definitely recommend it to anyone looking for a comfortable and reliable keyboard and mouse combo.
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Reviewed in the United States on May 27, 2026
★★★★★ 5
I love it! Better quality than expected for the price!
Color: White
Much better quality than expected for the price. Quiet typing, smooth mouse, no issues. I love it!
Will purchase again if I need another one.
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Reviewed in the United States on May 22, 2026
★★★★★ 4
It should last, but could be much better.
Color: Black
The keys are quiet and the keyboard should last a long time. Being a flat keyboard, I find myself hitting two keys at the same time frequently, and prefer the style with raised, tapered keys. The mouse times out and needs to be woke up by right clicking, but other times seems to lose connectivity entirely. Overall, I wish for something better
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Reviewed in the United States on December 22, 2025
★★★★★ 5
Great low price option for wireless keyboard
Color: Black
I’ve been using this ergonomic wireless keyboard and mouse for a bit now, and I’m honestly really happy with it. It’s super lightweight, and setup was as simple as plugging in the USB receiver; everything worked right away without me having to mess with any settings.
The keyboard feels great to type on. The keys are soft and quiet, and the adjustable tilt makes a noticeable difference for my wrists during longer work stretches. I also like having the full number pad and the shortcut keys, little things, but they make my day-to-day work smoother.
The mouse is comfortable and easy to control, and I haven’t had any issues with the wireless connection at all. No lag, no random disconnects. Battery life has also been impressive so far.
Overall, it’s easy to use, comfortable, and does exactly what I need it to. I’m definitely happy with the purchase.
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Reviewed in the United States on November 28, 2025
★★★★★ 5
Exactly what you need
Color: Black
This is a perfect and conformist up. Excellent spacing between keys and the number section is comfortable to use because it is large enough to make it a comfortable set up
No instamtions issues and no communication issues with it and my Lenovo Think Pad
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Reviewed in the United States on May 20, 2026