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Description
Holley EFI Dual Sync Pontiac Distributor, Black - 565-207BKOverview: 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 EFIand 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 |
|---|---|---|---|---|
| 1975 | Pontiac | Catalina | Safari | 455/7.5 V8 |
| 1967 - 1978 | Pontiac | Catalina | 400/6.6 V8 | |
| 1972 - 1976 | Pontiac | Catalina | 350/5.7 V8 | |
| 1970 - 1976 | Pontiac | Catalina | 455/7.5 V8 | |
| 1977 - 1980 | Pontiac | Catalina | 301/4.9 V8 | |
| 1980 | Pontiac | Catalina | 265/4.3 V8 | |
| 1981 | Pontiac | Catalina | Base | 265/4.3 V8 |
| 1970 - 1976 | Pontiac | Firebird | 400/6.6 V8 | |
| 1972 - 1976 | Pontiac | Firebird | 350/5.7 V8 | |
| 1971 - 1976 | Pontiac | Firebird | 455/7.5 V8 | |
| 1967 - 1977 | Pontiac | Firebird | Base | 400/6.6 V8 |
| 1977 - 1979 | Pontiac | Firebird | Base | 301/4.9 V8 |
| 1977 - 1979 | Pontiac | Firebird | Esprit | 301/4.9 V8 |
| 1977 - 1979 | Pontiac | Firebird | Formula | 400/6.6 V8 |
| 1977 - 1979 | Pontiac | Firebird | Formula | 301/4.9 V8 |
| 1969 - 1979 | Pontiac | Firebird | Trans Am | 400/6.6 V8 |
| 1979 | Pontiac | Firebird | Trans Am | 301/4.9 V8 |
| 1980 - 1981 | Pontiac | Firebird | 301/4.9 V8 | |
| 1980 - 1981 | Pontiac | Firebird | 265/4.3 V8 | |
| 1967 | Pontiac | Firebird | Base | 326/5.3 V8 |
| 1967 | Pontiac | Firebird | HO | 400/6.6 V8 |
| 1967 - 1969 | Pontiac | Firebird | 400 | 400/6.6 V8 |
| 1973 - 1975 | Pontiac | Grand Am | 400/6.6 V8 | |
| 1973 - 1975 | Pontiac | Grand Am | 455/7.5 V8 | |
| 1973 | Pontiac | Grand Am | 350/5.7 V8 | |
| 1962 - 1966 | Pontiac | Grand Prix | 389/6.4 V8 | |
| 1963 - 1966 | Pontiac | Grand Prix | 421/6.9 V8 | |
| 1967 - 1977 | Pontiac | Grand Prix | 400/6.6 V8 | |
| 1967 - 1969 | Pontiac | Grand Prix | 428/7 V8 | |
| 1970 - 1975 | Pontiac | Grand Prix | 455/7.5 V8 | |
| 1958 | Pontiac | Star Chief | 370/6.1 V8 | |
| 1959 - 1966 | Pontiac | Star Chief | 389/6.4 V8 | |
| 1963 - 1966 | Pontiac | Star Chief | 421/6.9 V8 | |
| 1958 | Pontiac | Super Chief | 370/6.1 V8 | |
| 1960 - 1961 | Pontiac | Ventura | 389/6.4 V8 | |
| 1961 | Pontiac | Ventura | 421/6.9 V8 | |
| 1972 - 1973 | Pontiac | Ventura | 350/5.7 V8 | |
| 1974 - 1975 | Pontiac | Ventura | Base | 350/5.7 V8 |
| 1974 - 1975 | Pontiac | Ventura | Custom | 350/5.7 V8 |
| 1967 - 1976 | Pontiac | Parisienne | 400/6.6 V8 | |
| 1970 - 1976 | Pontiac | Parisienne | 455/7.5 V8 | |
| 1981 | Pontiac | Parisienne | Base | 265/4.3 V8 |
| 1971 - 1978 | Pontiac | Grand Safari | 400/6.6 V8 | |
| 1977 | Pontiac | Grand Safari | 301/4.9 V8 | |
| 1971 - 1976 | Pontiac | Grand Safari | 455/7.5 V8 | |
| 1970 - 1971 | Pontiac | Acadian | 402/6.6 V8 | |
| 1961 | Pontiac | Tempest | Base | 389/6.4 V8 |
| 1961 | Pontiac | Tempest | Safari | 389/6.4 V8 |
| 1961 | Pontiac | Tempest | LeMans | 389/6.4 V8 |
| 1963 - 1965 | Pontiac | Tempest | 326/5.3 V8 | |
| 1966 - 1969 | Pontiac | Laurentian | 427/7 V8 | |
| 1966 - 1969 | Pontiac | Parisienne | 427/7 V8 | |
| 1966 - 1969 | Pontiac | Strato-Chief | 427/7 V8 | |
| 1966 - 1967 | Pontiac | Tempest | Base | 326/5.3 V8 |
| 1967 - 1976 | Pontiac | Laurentian | 400/6.6 V8 | |
| 1971 - 1976 | Pontiac | Laurentian | 455/7.5 V8 | |
| 1968 - 1974 | Pontiac | LeMans | 400/6.6 V8 | |
| 1970 - 1974 | Pontiac | LeMans | 455/7.5 V8 | |
| 1972 - 1974 | Pontiac | LeMans | 350/5.7 V8 | |
| 1956 | Pontiac | Star Chief | 316/5.2 V8 | |
| 1978 - 1980 | Pontiac | Grand Am | 301/4.9 V8 | |
| 1975 - 1977 | Pontiac | Grand LeMans | Base | 400/6.6 V8 |
| 1975 - 1976 | Pontiac | Grand LeMans | Base | 350/5.7 V8 |
| 1975 - 1976 | Pontiac | Grand LeMans | Base | 455/7.5 V8 |
| 1975 - 1977 | Pontiac | Grand LeMans | Safari | 400/6.6 V8 |
| 1977 - 1980 | Pontiac | Grand LeMans | Base | 301/4.9 V8 |
| 1977 - 1981 | Pontiac | Grand LeMans | Safari | 301/4.9 V8 |
| 1980 - 1981 | Pontiac | Grand LeMans | Base | 265/4.3 V8 |
| 1980 - 1981 | Pontiac | Grand LeMans | Safari | 265/4.3 V8 |
| 1976 | Pontiac | Grand Prix | Base | 400/6.6 V8 |
| 1976 | Pontiac | Grand Prix | Base | 350/5.7 V8 |
| 1976 | Pontiac | Grand Prix | Base | 455/7.5 V8 |
| 1976 | Pontiac | Grand Prix | SJ | 400/6.6 V8 |
| 1976 | Pontiac | Grand Prix | SJ | 455/7.5 V8 |
| 1977 - 1980 | Pontiac | Grand Prix |
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4.4 ★★★★★
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Product Reviews
★★★★★ 5
Buena calidad
Excelente
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 28, 2025
★★★★★ 5
Trusted reliable brand
Size: 5 Liter, Style: 1 Pack, Configuration: 5W-30
I recently used LIQUI MOLY Molygen New Generation 5W-30 for an oil change and overall I’m very impressed with the quality. The oil feels like a premium product and the difference in engine smoothness was noticeable almost immediately after the change. The engine runs quieter and smoother, especially during cold starts. This oil uses advanced additive technology designed to reduce friction and protect internal engine components, which helps improve efficiency and extend engine life. It also helps prevent deposits and keeps the engine cleaner over time. ()
Another thing I like is that it maintains stable viscosity even under high temperatures and heavy driving conditions. It provides excellent lubrication and wear protection while also helping improve fuel efficiency. The oil is also compatible with modern engines, including turbocharged applications, this is a high-quality synthetic motor oil that provides excellent protection and performance. If you’re looking for a reliable oil that keeps the engine running smoothly and helps reduce wear, this is definitely a great option and worth the price.
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Reviewed in the United States on March 7, 2026
★★★★★ 5
The best thing you can use in a Tahoe! Period!
Size: 5 Liter, Style: 1 Pack, Configuration: 5W-30
This is like liquid gold for your vehicle,it's molecular make up,is far superior to any oil out there,as it gets hot,it's molecules bind to every component inside your engine and attaches itself to the metal and fills in the stress points,all points really,it basically soaks into the metals,and is by far the most long lasting and does not break down like other oils,I get 10k off one oil change and I have 273,000 miles on my 03 Tahoe and this stuff is incredible I don't have any ticks,clicks,knocks, Nothing,not on fire up,cold start,my truck runs about five degrees cooler,I get a couple more miles to the gallon and my motor purrs like new,I could probably go 12-15k between oil changes,but I change it with the filter at 10K a new AC Delco pf46e and a 5-1/4 qt jug of liquid moly 5-30 full synthetic a new crush washer and I'm good for 10,000 miles Easily.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Smooth, Quiet, and Reliable Protection
Size: 5 Liter, Style: 1 Pack, Configuration: 0W-20
I recently switched over to this oil and it’s honestly one of the best upgrades I’ve made for my 2018 Mazda 3 Hatchback 2.5L. The 5 liter jug is the perfect amount for a full change, and I really like knowing it’s a high-quality fully synthetic formula that gives my engine the protection it deserves.
The first thing I noticed was how much smoother cold starts became—no more of that rough, clunky sound in the mornings. The engine feels quieter overall and runs more efficiently, like it’s not straining as much. I’ve also seen fewer deposits and buildup, which gives me peace of mind about long-term wear.
Another thing I appreciate is that it’s designed with modern engines in mind—safe for turbocharged setups and catalytic converters. It also blends easily with other oils, which makes topping off simple if I ever need to.
Highlights for me:
Excellent cold-start protection, even on chilly mornings.
Noticeable improvement in smoothness and reduced engine noise.
Works well with today’s engines, including turbos.
Easy to mix when topping off.
Overall, this oil gives me confidence that my engine is well-protected and performing at its best. Definitely feels like a premium choice that’s worth it.
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Reviewed in the United States on August 17, 2025
★★★★★ 5
Great Stuff!
Size: 5 Liter, Style: 1 Pack, Configuration: 5W-30
Purchased for my husbands F-150 Truck , his engine was making a weird noise and he thought he was going to have to get a new engine but a friend recommended to change his oil and use this one. Boom, it worked! Couldn't believe it cleaned the engine out and the noise went away. Engine seems to be working fine now. Will definitely use again!
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Reviewed in the United States on May 13, 2026