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Description
Holley EFI Dual-Sync Distributor Chev 350 454 # HO565-200Holley EFI Dual Sync Distributor Chev 350 454 # HO565 200 Distributors, Holley EFI, Dual Sync, Hall Effect, Computer controlled Advance, Male HEI, Black Cap, Iron Gear, Polished Housing, Chevy, 4. 3 7. 4L, Each Distributor Cap Included: Yes Distributor Cap Style: Male HEI Distributor Cap Type: Small cap Ignition Coil Included: No Ignition Module Included: Yes Computer Controlled Compatible: Yes Trigger Style: Hall effect Advance Type: Computer
Holley EFI Dual-Sync Distributor Chev 350 454 # HO565-200Distributors, Holley EFI, Dual-Sync, Hall Effect, Computer-controlled Advance, Male/HEI, Black Cap, Iron Gear, Polished Housing, Chevy, 4.3-7.4L, Each
Distributor Cap Included:
Yes
Distributor Cap Style:
Male/HEI
Distributor Cap Type:
Small cap
Ignition Coil Included:
No
Ignition Module Included:
Yes
Computer-Controlled Compatible:
Yes
Trigger Style:
Hall effect
Advance Type:
Computer-controlled
Ignition Box Required:
No
Mechanical Tach Drive:
No
Slip Collar:
No
Distributor Gear Material:
Iron
Distributor Gear Rotation:
Standard
Distributor Cap Color:
Black
Housing Material:
Aluminum
Housing Finish:
Polished
Marine Use:
No
Remanufactured:
No
Quantity:
Sold individually.
Notes:
Designed for use with Holley EFI systems. May fit other systems requiring Hall effect sensors. Compatible with bronze gears.
Special Attention:
When utilized with Sniper EFI, ignition, adapter 558-493 is required.
Holley EFI Dual-Sync Distributors
Precise timing controlHolley EFI dual-sync distributors are built with two Hall effect sensors for crankshaft and camshaft signals. The distributors can be used as just a crankshaft speed input or provide a camshaft sync signal for sequential fueling operation. They're also useful for crank and cam signals when running coil-on-plug applications. Dozens of models are available; order the one recommended for your vehicle/engine application.Some features of Holley EFI dual-sync distributors include: CNC-machined billet aluminum housings with integrated LEDs for easy setup Hardened steel distributor gear Precision-machined shutter wheels that ensure accurate timingeven at very high RPM Designed to be plug-and-play with Holley systems, but may be used with other EFI systems that support Hall effect crankshaft and camshaft sensors
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
4.5 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 1
Terrible pillows
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
These pillows might be fine if you need them for a decorative sham, but definitely NOT to sleep on. They are super lumpy and soft, days after taking them out of package. It seems like there are just bunches of cotton strips in a row that are hard to fluff. They are also dark in some areas, so it looks like the pillow is stained, when in fact it's whatever material the stuffing is. I can't return them because they won't fit back in the box. Super disappointing.
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Reviewed in the United States on March 8, 2026
★★★★★ 5
Comfortable from the first night
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
I found them comfortable and with good support for the head and neck. They are wide in size and feel soft when lying down. After several days of use they continue to retain their shape without problem.
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Reviewed in the United States on June 6, 2026
★★★★★ 4
Not as Firm as I had hoped
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
A good pillow.
However, there is quite a difference between the manufacturer's and my idea of "medium firmness". I found this pillow much softer than I had anticipated.
I'll have to go for firmer for my next purchase.
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Reviewed in the United States on July 28, 2025
★★★★★ 5
I admit when I was wrong.
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
3/29/26 - I took the pillows and put them in my dryer on steam refresh for the default 10 minute cycle.
OMG - they fluffed up and evened out to be soft and comfortable, no lumps whatsoever. If you like a soft pillow with some support, but not firm support, THIS is what you want. I am truly amazed.
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Previous review---They arrived in a vacuum seal bag. When you cut the bag and they inflate, they inflate lumpy like. Some areas are thick and some have to fill so, not very good. I am going to try washing them and drying them to see if they fluff up better.
Will post the results in a day or two.
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Reviewed in the United States on March 24, 2026
★★★★★ 3
Immediate neck and back pain
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
Nice full pillows that holds its shape, BUT was NOT good head and neck support. I noticed an immediate difference. From non existent to growing neck pain in the first night’s use, through the week.
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Reviewed in the United States on May 30, 2026