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Description
Holley EFI Dual Sync Ford 351W Distributor, Black - 565-201BKOverview: 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 Black anodized 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 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 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 |
|---|---|---|---|---|
| 1971 - 1981 | Mercury | Marquis | 351/5.8 V8 | |
| 1975 - 1977 | Mercury | Monarch | 351/5.8 V8 | |
| 1975 | Mercury | Montego | Base | 351/5.8 V8 |
| 1975 | Mercury | Montego | Brougham | 351/5.8 V8 |
| 1975 | Mercury | Montego | Villager | 351/5.8 V8 |
| 1975 | Mercury | Montego | MX | 351/5.8 V8 |
| 1969 - 1976 | Mercury | Montego | 351/5.8 V8 | |
| 1969 - 1974 | Ford | Country Sedan | 351/5.8 V8 | |
| 1969 - 1974 | Ford | Country Squire | 351/5.8 V8 | |
| 1969 - 1974 | Ford | Custom 500 | 351/5.8 V8 | |
| 1972 - 1976 | Ford | Gran Torino | 351/5.8 V8 | |
| 1969 - 1981 | Ford | LTD | 351/5.8 V8 | |
| 1969 - 1972 | Ford | Mustang | Base | 351/5.8 V8 |
| 1970 - 1972 | Ford | Mustang | Mach 1 | 351/5.8 V8 |
| 1970 - 1972 | Ford | Mustang | Grande | 351/5.8 V8 |
| 1973 | Ford | Mustang | 351/5.8 V8 | |
| 1969 - 1974 | Ford | Ranch Wagon | 351/5.8 V8 | |
| 1969 - 1971 | Ford | Torino | GT | 351/5.8 V8 |
| 1969 - 1971 | Ford | Torino | Squire | 351/5.8 V8 |
| 1969 - 1971 | Ford | Torino | Base | 351/5.8 V8 |
| 1970 - 1971 | Ford | Torino | Brougham | 351/5.8 V8 |
| 1969 - 1970 | Ford | Mustang | Shelby GT-350 | 351/5.8 V8 |
| 1971 | Ford | Mustang | Boss 351 | 351/5.8 V8 |
| 1969 - 1970 | Ford | Fairlane | 351/5.8 V8 | |
| 1969 - 1970 | Ford | Falcon | 351/5.8 V8 | |
| 1969 - 1974 | Ford | Galaxie 500 | 351/5.8 V8 | |
| 1969 - 1979 | Ford | Ranchero | 351/5.8 V8 | |
| 1971 | Ford | Torino | 500 | 351/5.8 V8 |
| 1971 | Ford | Torino | Cobra | 351/5.8 V8 |
| 1972 - 1976 | Ford | Torino | 351/5.8 V8 | |
| 1969 - 1974 | Mercury | Colony Park | 351/5.8 V8 | |
| 1969 | Mercury | Comet | 351/5.8 V8 | |
| 1969 - 1977 | Mercury | Cougar | Base | 351/5.8 V8 |
| 1969 - 1977 | Mercury | Cougar | XR-7 | 351/5.8 V8 |
| 1971 - 1979 | Mercury | Cougar | 351/5.8 V8 | |
| 1978 - 1985 | Ford | Bronco | 351/5.8 V8 | |
| 1975 - 1982 | Ford | LTD | Base | 351/5.8 V8 |
| 1975 - 1978 | Ford | LTD | Landau | 351/5.8 V8 |
| 1975 - 1976 | Ford | LTD | Brougham | 351/5.8 V8 |
| 1975 - 1977 | Ford | Custom 500 | Base | 351/5.8 V8 |
| 1975 - 1983 | Ford | E-100 Econoline | 351/5.8 V8 | |
| 1975 - 1983 | Ford | E-100 Econoline Club Wagon | 351/5.8 V8 | |
| 1975 - 1985 | Ford | E-150 Econoline | 351/5.8 V8 | |
| 1975 - 1985 | Ford | E-150 Econoline Club Wagon | 351/5.8 V8 | |
| 1975 - 1985 | Ford | E-250 Econoline | 351/5.8 V8 | |
| 1977 - 1985 | Ford | F-350 | 351/5.8 V8 | |
| 1975 - 1977 | Ford | Granada | 351/5.8 V8 | |
| 1982 | Ford | LTD | S | 351/5.8 V8 |
| 1982 - 1984 | Ford | LTD | Crown Victoria | 351/5.8 V8 |
| 1983 - 1984 | Ford | LTD | Country Squire | 351/5.8 V8 |
| 1977 | Ford | LTD II | S | 351/5.8 V8 |
| 1977 | Ford | LTD II | Base | 351/5.8 V8 |
| 1977 | Ford | LTD II | Brougham | 351/5.8 V8 |
| 1977 | Ford | LTD II | Squire | 351/5.8 V8 |
| 1978 - 1979 | Ford | LTD II | 351/5.8 V8 | |
| 1995 | Ford | Mustang | SVT Cobra R | 351/5.8 V8 |
| 1977 | Ford | Ranchero | GT | 351/5.8 V8 |
| 1977 | Ford | Ranchero | 500 | 351/5.8 V8 |
| 1977 | Ford | Ranchero | Squire | 351/5.8 V8 |
| 1977 - 1979 | Ford | Thunderbird | 351/5.8 V8 | |
| 1980 | Lincoln | Continental | 351/5.8 V8 | |
| 1980 | Lincoln | Mark VI | 351/5.8 V8 | |
| 1977 | Lincoln | Versailles | 351/5.8 V8 | |
| 1978 - 1981 | Mercury | Grand Marquis | 351/5.8 V8 | |
| 1983 - 1989 | Mercury | Grand Marquis | Base | 351/5.8 V8 |
| 1986 | Mercury | Grand Marquis | Colony Park | 351/5.8 V8 |
| 1977 | Mercury | Cougar | Brougham | 351/5.8 V8 |
| 1977 | Mercury | Cougar | Villager | 351/5.8 V8 |
| 1970 - 1974 | Mercury | Monterey | 351/5.8 V8 | |
| 1975 - 1985 | Ford | E-250 Econoline Club Wagon | 351/5.8 V8 | |
| 1975 - 1985 | Ford | E-350 Econoline | 351/5.8 V8 | |
| 1977 - 1985 | Ford | E-350 Econoline Club Wagon | 351/5.8 V8 | |
| 1975 - 1976 | Ford | Elite | 351/5.8 V8 | |
| 1977 - 1979 | Ford | F-100 | 351/5.8 V8 | |
| 1977 - 1985 | Ford | F-150 | 351/5.8 V8 | |
| 1993 - 1995 | Ford | F-150 | Lightning | 351/5.8 V8 |
| 1977 - 1985 |
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4.9 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 1
Product does not function as befits a brand name like Sony
Review updated after TWO returns to the repair center and MANY calls to both Support and the CS Escalation department:
I'M STILL NOT PLEASED WITH THIS PRODUCT. During startup, this receiver bounces back and forth from input source to input source as if I triggered a roulette wheel. Where will it finally stop?
In my case, I most often use Video input. Sometimes during startup, it will momentarily display the Video input as expected, but will then start jumping/fishing around to other inputs types, including those I've never used. Eventually, it may return to the Video input, but it will not display the actual video or audio content. Instead, it just displays a black banner that reads VIDEO. I then have to turn the receiver off and on again hoping that maybe it will work this time.
Neither Sony's escalation Team, nor the repair facility will answer the simple question, "What SHOULD it do when I first turn it on?"
In addition, on at least two occasions, during startup, I saw PLEASEWAIT written across the display for 75 seconds before the device actually started up OR rebooted. (Note: THIS issue appears to be resolved by the repair center replacing a circuit board.)
Another related annoyance is that when video content changes (e.g., from a show to a commercial, back to a commercial on YouTube), each break in the chain displays 5+ seconds of black screen even though you can hear the audio. This doesn't sound like much, but when it does this every time, it gets annoying AND is infinitely longer than my previous 10 y/o receiver.)
About 2-3 times an hour, while viewing consistent content from the same input, the screen will suddenly go black, then the audio drops out, and then it will flash a HDCP 2.3 warning blue screen. Unacceptable!
In short, and IMHO, the audio quality is very good, but basic functionality is SEVERELY clunky. Again, IMHO, this product should have NEVER gone to market.
The combination of poor functionality AND a dismal customer experience forever diminishes Sony's former world-class brand status.
P.S.: Sony's Escalation department told me that they simply DO NOT provide refunds if you've had the product more than 30 days. So make sure that you test ALL functionality as soon as it arrives.
Caveat emptor.
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Reviewed in the United States on September 16, 2025
★★★★★ 5
Excelente
Size: 18 AWG-200 ft
Buen artículo recomendado
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 5
First class product
Size: 18 AWG-200 ft
One of the best protected wires, not cheap but compensate the price with quality.
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Reviewed in the United States on December 9, 2020
★★★★★ 5
What u are using it for
Size: 18 AWG-200 ft
Strobe lights so far so good
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Reviewed in the United States on March 23, 2021
★★★★★ 5
My Denon ROCKS
Style: AVR-X3800H
Pros:
Nine Amps power a 9.1 or 7.1.2 or 5.2.4 speaker configuration because most of us want Atmos to work in our listening room.
Plenty of power available in each amp and each configuration
Atmos DTS IMAX plus any other codec or audio visual enhancement is available. Yes, 4K 8K HDR all supported.
Three HDMI outputs
Preamp output for up to 11 channels so any combination of preamp vs. power amplifier output is available. But not both preamp AND power amp for the same channel. And you can pick and choose which channel you want for pre amp vs power amp individually. So it can function as a AV Preamp Processor at very reasonable price point.
DAC (changes Digital Signal to Analog) with all the power amplifiers you could want. High quality, including DSD, is an added bonus.
Setup customizable to the nth degree. Some people might say too many options but that’s the way we get this AVR to meet our individual requirements
I’ve been working with the setup for the last week and have dialed in for my needs. Still playing with the HEOS but I think it’s working well for now. Various HDMI inputs need different surround settings, I like the DTS best, but the unit has a way to include default settings for each HDMI. I’ll use default settings with my BluRay. And I’ll use direct or pure or whatever the source allows for music and streaming. And most users will want a streaming stick like the Amazon one otherwise you can’t get the Atmos signal to work. Older streamers won’t pass the Atmos signal though.
The only problem with a device like this is you will buy more speakers and amps and possibly even more subwoofers, the unit will support 4 subwoofers. Enjoy
So I will get back to you with comments about longer term issues. BTW the 3800 was a refurbished version for $999 . Definitely an excellent value. The online reviews are quite favorable. Even the audiophiles are still learning the nuances of setup. It’s worth the extra effort to get the most out of each user’s individual existing equipment.
Cons: None. I’ve been an audio video nerd for decades so I can say that the setup effort is easily justified once the user, with user manual in hand, patiently works out the desired configuration. The audio expert online information is invaluable.
I have 21MBS broadband service in my region. Even with this limitation I have more than enough added capacity with the Denon that I would never return it to seller unless someone catastrophic happened. Yes I like it that much.
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Reviewed in the United States on March 1, 2024